Jlumba - Check out this write-up on a BGH close ratio gearkit install on a T9: http://my.voyager.net/~quadrant19/Gearbox-upgrade.html This should give you enough info on what tools you need.
The kit you're looking to do should be easier since you shouldn't have to machine the case, but I would double check with Burton first. I did the same BGH kit as Cherik and have been very happy with the results. I was able to machine my case with a drill press and a simple tool I made up, info here: http://www.usa7s.com/vb/showthread.php?t=1046&highlight=trans
Other than that, just follow the manual and keep the parts cleaned and organized. Here's a T9 manual: http://www.biggles.net/download/Manual_Type9.pdf