In my opinion, those quotes are a little high for what you're after...although not ridiculous for agencies with a bunch of overhead.
What you're asking for sounds like a strong lander for your home page + a custom WP theme for the rest of the site + integrating a 3rd party cart (e.g. UltraCart) for processing etc would cover your requirements. Depending on the complexity of integrating w/ your fulfillment company could move the needle on the quote a little bit. If you'd like, you can PM me and I'll show you some sample e-com platforms I've done recently and give you a quote. Significantly less than the ballparks you mentioned in your original post.
PS> This is me on Sortfolio - http://www.sortfolio.com/company/7962-rainmaker-commerce
What you're asking for sounds like a strong lander for your home page + a custom WP theme for the rest of the site + integrating a 3rd party cart (e.g. UltraCart) for processing etc would cover your requirements. Depending on the complexity of integrating w/ your fulfillment company could move the needle on the quote a little bit. If you'd like, you can PM me and I'll show you some sample e-com platforms I've done recently and give you a quote. Significantly less than the ballparks you mentioned in your original post.
PS> This is me on Sortfolio - http://www.sortfolio.com/company/7962-rainmaker-commerce