back end website setup for expert

Hello and thank you for taking the time to learn about my project. Project is as followed. I have a website that is online setup with joomla and virtuemart. i would like a modx - and foxy cart or another management system with a 1 pg shopping cart solution My webpage with design is already online and running with virtuemart, and login and logout feature but like i said im looking for a different setup i have a godaddy hosting If you can pm example or what you think you can provide in a timely fashion that would be great. the most important request that i have is that i need a one page shopping cart system setup either on my current joomla system or with a new management solution. I would like the project done asap. AND AT THE BEST VALUE. i provided an attached photo of the check out I MADE IN PAINT. Thanks and all the best. open any ideas.. you may have.