Simple PHP Shopping Cart / Admin - repost

I have a website that will sell shooting targets. It will require a basic shopping cart (don't need an overblown solution), a custom configurator for two of the products (similar), paypal integration for checkout, and an admin interface for managing the products. Mockups are attached. Below is the scope: Create basic shopping cart functions for buyers to add/remove products (44 targets) to/from a shopping cart Enable buyers to configure their own 10-target and 20-target packages (see mockup) Convert existing XML data for all targets into the database Create a simple admin add/edit/delete interface for managing target data Generate the All Targets and New Additions pages based on query settings (admin tool flags targets as New Additions when more are updated in database) Integrate with UPS shipping quote if possible - or - allow inclusion of a flat rate for shipping in the admin interface Payment checkout integrated with PayPal (account info will be provided) All HTML and CSS is already built. The contact and reseller pages are already done. FTP info for the site will be provided but if you want to develop on your server, I will provide all files. Summary of Work/Pages: All Targets page (see mockup) - generates from all target info in db New Additions - same as all targets page but generates list of all targets in db flagged as new Individual Target pages - one page per target with info from db. Created to show bigger pic of each target with buy now link Build Your Own 10 page (see mockup) Build Your Own 20 page (similar to page above but for 20) Buy Now page (see mockup) Cart Page (mockup will be provided) - shopping cart summary page with links to check out with PayPal and shipping calculation (or shipment amount from db - TBD)