I was a fan of the show, still am. While I never had any of the Kenner line as a kid, my brother had Steve and some of the accessories which I occasionally was "allowed" to play with.
If I had unlimited space and money, I'd try to collect some of the key pieces from this line, mainly SA, Bigfoot and Oscar. I see loose Steves all the time at flea markets and toy shows, always with the rubber rotted-away on the forearm and usually only wearing the red jumpsuit, never with his sneakers or accessories.
I did pick up the 3 3 3/4" retro style figures ZICA released last year, those are great.
Big fan of the show and the toys. I got the original Steve Austin when I had my tonsils out, I think I was around 6 or 7. It was the one that came with the engine block and had the skin you could roll back on his arm. I also had the space capsule/bionic surgery thing, but that was as far as my collection grew. Had a friend who had bionic Bigfoot though, was sooo jealous.