totally off topic dark knight.
anyways, the mini-z's go for about $100 for the readyset at hobby stores.
i'd prefer the Mr02, but the ma10 is much easier to switch to if you've driven xmods for a long time.
ma-10's cost anout 120-130 bucks, and if you don't really have that much to spend on mini-z's then you can stick with your xmods.
http://www.asiatees.com/
one of the places you can get cheap GPM while they still make it
anyways, it's up to if you have the budget and/or the patience to learn to drive rwd