It does look like the coils are degraded, I have no idea what was sprayed on there, BUT , I just found something unbelievable on eBay...
https://www.ebay.com/itm/33393078910...UAAOSwwgxgWUtm
for THAT price, its worth a try.
I still may end up going direct input, building the amp now for it cause 1v ptp is not enough.