We need a one product page (is being designed, like an FPA) that has an orderform on it, called from a block or whatever.
We will display an ad on a page, when clients want to buy the product they can fill in the forms on the SAME page and be redirected to their choice of billing.
Basicly the default Magento checkout process needs to be altered to a static version, like this:
1. client address form where the client fills in their data
2. Shipping method selection
3. Billing method selection
4. Submit button
After this the default Magento dataflow can be used. We just need to simplify the first few steps to only one step from the CMS page.
Lots of samples online, none found that does exactly this little thing.
If you know Magento well this is only a very small assignment. Up to one hour of work.