Modify RSTickets to process orders

Avg Bid (USD)
Project Budget (USD)
$250 - $750

Project Description:
I'l describe nature of business and workflow. I suggest how we can improve workflow - if you have better idea let me know.
I have a website on Joomla 1.5 and customers who log in and fill the form place the order.
Customers order parts that are not available in their countries. We aquire parts, repack and ship.
Right now I use RSForm Pro to recieve order. Sample:
Form does calculations. On submit event I and customer receive email with the table view for all items that can be printed in landscape layout on letter size paper. Then all the communication about the order goes thru email which is a mess.
I think that RSTickets system will work for my needs (people will submit orders as tickets) but I need to modify ticket form to accomodate all my fields (for 10 items) and do calculations (Java on the fly or Recalculate button) or ability to add fields for more items if needed (AJAX?). On submit event I will need it to email me and customer table view summary of all items (I provide template sample). On the thank you page I'd like to have three options for my customers: Pay with Paypal, Pay with Google checkout, Pay later. Not neccesary but will be great if the order was paid its status will be changes to Paid (Paypal IPN?)
I will need also to modify existing ticket template so I and customer can log in an see submitted data in table view.
I will need log of changes made to RSTickets so I can install it on my production site.
In short:
• Modify ticket submit form
• Modify email template
• Modify existing ticket view
• Integrate payment options. Change of order status depending on payment status is optional but very desired.

Skills required:
About the employer:
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