Hello,
I'm sure this must have been asked before but my searches haven't found anything.

NOTE: to avoid the prohibition of posting links in here, I had to change all https references to hxxps.

I'm trying to sell large files (1GB) from my website with Abantecart and 2Checkout, by embedding a button in my existing webpages and trying to avoid the Abantecart storefront pages as much as possible.  The files download with negligible server load by using a direct link like hxxps://raspiwares.com/xx/yy.zip. But as a digital product, Abantecart wants to load the whole file into memory during the sale, overloading the server. 

I see this option in using 2Checkout:

<form action="#" method="post">
        <input type="hidden" name="return_url" value="hxxps://raspiwares.com/downloads/Cffserverconf.html">
        </form>

This can be added to "Buy" buttons to return the buyer to a specific page for each product, but it doesn't seem to work within Abantecart.  My plan is to return to a specific page for each download which will have a hxxps:raspiwares.com/xx/yy.zip link for the purchaser to click on and download w/o server loading.

Is it possible to set a specific unique (non-storefront) return page within Abantecart for each product, that after sale, the customer would be returned to, that contained the simple hxxps://raspiwares.com/xx/yy.zip link for the customer to click on and receive their purchase?

Thank you for any help,
Bob