I need a tweak to the paypal gateway.
It should be about 5 lines of code changed in one or two php files.
What is required is to be able to manually choose what IPN url is forwarded to paypal, as well as the return url, in the admin page for that gateway, and to have this reflected in what ipn headers are sent to Paypal.
I would also like to alter the cubecart V3 Mals-e payment gateway to work with cubecart V4. Again, very few lines of code would be involved.
You may bid separately for these projects. The paypal gateway tweak is the most urgent and first to be done.