Hmm... You're kind of all over the place here. I don't know what Gila is, but give Yahoo or Google a shot. I'm confused by your comment about turning rapid fire. If you're talking about shifters, are you confusing grip shift and rapid fire shifting? Grip shift is the one on the bar that you twist the grip, rapid fire is the trigger type shifter. As for the 8sp stuff, All Shimano 7/8sp is the same spacing, so any of it will work together, if that helps anything. The only secret auction site for used bike crap I know of is known as craigslist, and it's just a matter of wasting a lot of your time there until you find the right thing. Often times you can put up a "Wanted" ad on CL in the bike section if you're just looking for a few cheaper parts. I've had luck with that the few times I've tried it.