To be more clear on terminology, I should have prob said... They SUPPORT all the TAGS we want to utilize in OUR FEEDS.

Have you looked at sovereignfeeds.com ? You can upload the audio/image files to your server and then use that tool to generate an xml file (podcast feed) with links to those audio/image filles it's very handy. You then upload that xml file to your server and enter the url to it in the indexes. Try it out, download the xml file and inspect it, test in feed validators, it's a great way to learn!

Yeah so castapod gives you the ability to add "custom rss." Not sure if that's called exactly that. But you can paste in a xml snippet. You can do this at the podcast level or the episode level. So you can start by finding a valid RSS feed, copy their <value> block, modify it for your node or lnaddress, and then just paste it in. For this, it worked.