sounds like your in business.... I'm drooling over the 2mb that you have in your 570, I just have a stock 570. What kickstart do you have?
I've ran games under whdload/jst from a cdrom on an amiga, you just need enough ram for it. The answer to your question is yes it possible and yes they would work with an a600/a1200 aslong as they have enough ram.