Payment Links

Hi, We sell our products and services over email and the phone, not on our website. Each client has a custom quote for their needs. Therefor each payment we receive is a different amount. We run a filemaker database that emails proposals to clients. I want to be able to build a website link in filemaker that will pull up a payment page with their information and amount due listed. I need to be able to create a link like: http://www.mydomain.com/<client name><payment amount><payment description> from my database. Then when the page loads it shows the client name, payment amount, and description. We use [login to view URL] for our payment processor. We are currently on a MS Windows host and do have an SSL certificate installed. I don't care what technology is used to do this, as long as it is security and stable.