I know of
Ferrocash for all your Nylon / Pantyhose traffic, they do have both RSS feeds.
For classic / vintage traffic you might wanna check payserve.com,
http://www.coldhardcash.com (vintageerotica.com) and occash.com ( pornclassics.com )
Double check and make sure the last Ones have morphing RSS, knowing occash and xxxjay i am pretty sure they do...
good luck man