Hi There,
I'm well experienced with Joomla and virtuemart and do a lot of contract work for other parties in creating such sites and editing the coding to do exactly what is required. Basically what my quote includes would be the following:
Install of joomla and virtuemart
Creation of completely custom shop and website templates
Creation of categories, shipping methods, integration to paypal
Addition of up to 100 products
I tried to visit your site to see what you have at the moment but it has a splash screen with no further info, is your catalogue online anywhere at present?
Are you going to be adding the products yourselves? My quote includes the first 100 products or so and it's time consuming process so I'd need to requote if it was more than that. Obviously if you're managing it yourself then there's no issues! ;-)
Unfortunately I'm bound by some non-disclosure agreements so I can't show you some of my best work but I've given you some relevant examples in a PM. I do work a lot with my other employers via skype so this won't be an issue.