What back brake have you got just now? Most trials riders use Magura HS33's and some use a disc on the front. Some people prefer vee brakes because they feel quicker and can be easier to set up.
Just to let you know..... Hunters rear maggie is the BEST brake I have ever used. People who I know with discs always have problems with them but people with maguras are always fine. And vee's are well good
I agree I have Evo 2 mounts and I used to have a Magura booster, but it snapped. Then I got a Trialtech sport 2 bolt booster and it made a big difference to the amount of flex.
I broke a chain tool trying to split a KMC Kool chain but it was a rubbish one on a multi tool. I borrowed a better one from a friend and it worked fine.
Onza Limes are cheap and work quite well on light grinds. CNC backings are quite good but seemingly they can snap the pistons sometimes but I don't know if that's very common.