The K26 turbos are all water/oil cooled - the 930 version is the same as the K27 ran on some VW Tractors, it isn't a terrible turbo - but not near as efficient for your lil engine as a T3 would be, also making a flange/exhaustmanifold/whatever would suck alot more than just bolting on another T3.
I have a few K26s that you can play with if you want, they aren't bad turbos - but they aren't that good either, most of them are glorified hairdriers after about 18 psi, even though i've seen more than 25 through ones with upgraded compressor wheels and ported housings...
I mean, if you just want crazy lag and stupid volume, you could always run a Holset?
