Hello .
My name is Darko, and offer to do this for you.
From first look, I see no problems to make yours website work on Joomla, and make forms for quotes.
As for 2CO service, if I remember correctly, there are some conditions, like certain pages must be on website, logos, etc.
Good thing is that if you do not have 2CO account, we can make free one, and setup all and then upgrade it to full.
Portfolio: http://www.freelancer.com/u/dakiriki.html
I look forward to hearing from you later to learn more about this project.
Best regards