Dynamic Head Asset IDs and Purchasing in-game

I’ve been working on a game that will allow players to purchase catalog items from within it, but I’ve run into a road bump concerning dynamic heads.

The marketplace URL for dynamic heads does not contain the asset ID, and inspect element hasn’t worked for me either. So far my solution has been to search for the item to find its Rolimons page - and if that fails - its creators page until I find it.
I haven’t seen anything regarding this on the forum, so if anyone has any methods more efficient than this to get the asset ID I am all ears.

Here’s the second problem I’ve run into:
My Outfit Viewer GUI shows everything in the Humanoid Description I want it to, but for some reason it cannot fetch the price from the marketplace for Dynamic Heads. I know my asset ID for it is correct. Does anyone know if this is related to the catalog URL and asset IDs not matching? Or is it more likely I forgot to include something in the script handling it.