I need a website and an app
Website Menu Options:

Buy Now: This section will allow users to browse and purchase products. The product upload process should be fast, and each product should display the quantity available, "Add to Cart" and "Buy Now" buttons, a small description, and specify whether the product can be shipped or is available for in-store pickup. Categories should be displayed on the left side for easy navigation.

Auctions: This section will feature online auctions. It should include a submenu with options to view the current auction and upcoming auctions. The layout and functionality should resemble liquidation.com, with auctions categorized, filtered, and displayed. Each product in the auction section should display the calculation of the total cost based on the desired bidding amount, including a 10% buyer premium, taxes, and shipping. Additionally, there should be quick bidding options with preset amounts like $1, $5, $10, similar to fbwholesale.biz. Each product in the auction section should allow for a small note, support proxy bidding, display general information about auctions, and provide a product description. The option to "Buy Now" should also be available. During the last 5 minutes of an auction, if someone places a bid, the clock should reset for an additional 5 minutes. Upon winning an auction, a pop-up should indicate the win, and the winner should receive an email and text message notification. Similarly, if someone is outbid, they should receive a notification with a link to continue bidding on the website. The website should have a dynamic app that sends notifications during auctions and allows for personalized messages to customers regarding new auctions, products, offers, or news.

About Us: This section will provide comprehensive information about the company. It should include details about the company's history, mission, values, team members, notable achievements, and certifications. Logos of partner companies should also be displayed.

Work With Us: This menu option will open an external link to a separate page for job opportunities within the company.

Contact Us: This section will provide contact information for users to get in touch with the company. It should include a contact form and display relevant contact details such as email, phone number, and physical address.

Buyer Information: This section should provide important information for buyers before bidding, similar to directliquidation.com. It should include guidelines, tips, and terms and conditions for participating in auctions.

Gallery: This section should feature a gallery divided into videos and photos, showcasing products, auctions, and other relevant content.

Additional Requirements:

The website should have two panels: one for the company and one for customers. The customer panel should allow users to view their won auctions, update their information, and have a watchlist feature.
Shipping fees should be reflected in the product calculation, and there should be an option to calculate shipping costs based on the zip code.
Users should be required to register on the website before bidding, and credit card information should be mandatory during registration for security purposes. Registration should also offer the option to register using social media or Gmail accounts.
Shipping rates should be integrated from ShipStation or UPS for accurate product shipping cost calculation.
The menu option "Work With Us" should open an external link in a new page.
The website should be user-friendly and fast. The product upload process should not take longer than 3 minutes.
Options for home delivery and in-store payment should be available, and these options should be customizable in the admin panel.
The menu should include a "Blog" option for writing about liquidation-related topics.
A pop-up should appear at the beginning offering a discount for the user's first direct purchase or winning auction.
In the footer menu, legal information such as terms of service, shipping details, privacy policies, return policies, company policies, and common FAQs should be displayed.

I have tried to be as detailed as possible, but you are the expert and I would like to have a website that will serve me for a long time, not just for the moment, I would like you to give me some idea or maybe reading this you can know more than what I wish, I put web addresses of other liquidation sites so that you can be guided, I would like the app to be downloadable on android and apple and that it have the same functions as on the website, bu with notifications can be sent. I would like to know based on everything I am requesting how much the budget would be and also if you are going to use external applications to be able to do all this, I would like to know how much my annual cost would be to keep the website running smoothly.