rebuild kit for a watercooled turbonetics cheetah?

[JDSfastGN]

I was recently given a turbonetics watercooled turbo. It looks like its a cheetah stage 3a (it has a larger intake wheel, but it appears to be a stock sized exhaust wheel) The compressor has 20192 stamped on it along with the turbonetics T. Does anybody know what rebuild kit I need to use? What type of seal etc... and would the water cooled center section require a different rebuild kit than a standard T3/T4 kit?