No offense intended, but a Kristi would be my last choice for a first snowcat purchase. Affordable because they are quite scarce, spare parts are almost non existent and the track system would probably have to be re fabricated. Just my 2 cents....Bob
Owning both a snow trac and Kristi, the Kristi is not a scarce as one might think, next, the Kristi is easier to work on, the the drive train is straight forward and can be repaired and or parts can be fabricated in just about anyones garage, the side hilling system is not all that complicated, Kristi sadly has been the blunt of every snow cat joke and with that, lots of bad info, do not be afraid of a Kristi, you may find it is a good cat, there are several Kristi's out there, proving their worth and doing with great confidence
lets be honest here for a minute or two, every snow cat has issues, no cat is a prefect design and or can do it all in all conditions and prices are all over the map, unless you have unlimited money and resources, and are able to buy a nearly new and or a fully restored cat, you will work on any cat you buy and pretty much everyone tries their best to make it as reliable as it can be sometime reinventing the whole machine, and finally, putting their personal taste into the build.
something to consider, you could build your own cat from scratch, many have and built some pretty good machines
so, take a little time and find the best cat you can afford, meanwhile, talk with cat owners and learn all you can, hopefully taking out personal prejudices as to the best cat and don't listen to the Kristi jokes, they are just as good as any cat out there
and vintage bike does make a very good point, about all ancient snow cats and tuckers may be the worst offender, no new grousers, no new pontoons, no new fifth wheels, no new transfer cases and lots of rust