Finally getting caught up on this, you were 100% correct about Mark Scarpa being the guy with the breakdancing gimmick, he was Vincent Young in WCW and did jobs after that in WWF as Mark Young. Didn't know about Private Pyle but I can completely see that, good call on the Dave Meltzer lookalike.
Edit : Updating as I listen, the Headhunters were scheduled to be in the NWA Tag Title tournament but it ended up falling through, in the end they sent out Bob Cook and Arn Anderson under masks as the Headhunters.