What I did was went to paypal and created buttons, then i got the email link to the button. Under the advanced form options I pasted the button link under “Exact URL of destination page” So when people submit my form it takes them to paypal.
I thought I was brilliant for coming up with this work around until someone placed an order. Whats happeneing is they fill out the form, submit it and make payment via paypal. I get an email saying they paid but there is no record they filled out the form. :-/