Configuration of Zen Cart and Modules Instalation

I have a Zen Cart already installed and with a custom template, what is needed is to configure it (already configured with the languages English and Spanish default Spanish, and some of the store details such as name, phone, etc). I need the Paypal module installed and configured correctly, same with [login to view URL] module, if available and possible google checkout, the tax system configured with a zone tax for Puerto Rico only. I also need the installation and configuration of the UPS shipping module, the USPS module, and the FedEx Module (with a default TO Country of Puerto Rico). It would be nice to have modules to simplify the order tracking and management, invoice generator and mailer, barcode system, monthly reports, credit card by phone module, and any other module you think might help us. About us: We are an existing physical Hardware Store (as in hammers, nails, drills, and similar products) and want to extend to the net and add products that we do not sell in-store, so they can be ordered even if we don't have them in stock (drop-ship style). Please be clear about what you can do, and include some similar projects you have worked with before. We need this to be completed in a short time, so include a realistic time-frame for your work.