Robydean,
Welcome to the forum. While in some ways the Thiokol/DMC/LMC vs Tucker debate is similar to Ford vs Chevy, there are significant differences between them. There are many forum members from both camps who can weigh-in with their thoughts. I’ll give you my honest opinions, and apologize in advance if I tread on someone’s toes.
At present I own a few Tuckers and a DMC 1450 (aka: Super Imp). Having operated both, I prefer the Tucker product. Okay, why? The four track Tucker system rides much more smoothly over uneven terrain. If you think of a washboard surfaced trail, two track machines tend to be continually oscillating up and down. That gets old…fast, and it is especially pronounced on shorter machines like the Imp. In terms of steering, the Tucker system is both more intuitive and just nicer overall. With a Tucker steering wheel you can make minor corrections and you’re driving smoothly, and with one hand. With the brake steer system, it seems more jerky and less smooth, and you seem to making inputs almost constantly. I’m tall (6’4”) and I find the DMC 1450 somewhat cramped inside. For most of the years the Spryte was produced, the front doors are a bit like half doors and ingress and egress from the cab is more difficult than it needs to be. (The later production 1200 machines have larger doors.)
If you need to carry four passengers, meaning a total of five people including the driver, you’re going to need a Tucker three door machine. Though Tucker often claims the four door cab can carry five people, it’s simply not true - unless three of them are basically child size. Tucker typically built between 50-100 machines a year, and the majority were the two door cab configuration. Three door machines are especially scarce, but four door models are not plentiful, either. As you may know, during the rubber belted Tucker era, they offered different track length options. Short track models, known as 1300 series machines, have four idler wheels per carrier and the carriers are 70” long. Mid-length track models have five idler wheels, and the carriers are 76” long. Those are 1500 series models, and lastly the long track 1600 series machines have six idler wheels per carrier, and the carriers are 92” long. Obviously, the longer the tracks the greater the flotation. I live in Northern Utah and strongly prefer the long tracks, but your snow conditions are of course different, and you may be just fine with mid length or maybe even short tracks. An automatic transmission in a snowcat is a nice feature.
I don’t know why, but it seems there are far fewer used snowcats for sale these days. Of course like just about everything else, prices for used machines have escalated sharply. However, with the information I provided if you were to decide you wanted a long track, three door Tucker with an automatic transmission, I’d say you’ll be waiting a long time to find one. I bought my first snowcat in 2009 and in all the years since I don’t think I’ve seen a single machine with that configuration (with the exception of some ex-Aleyska Detroit Diesel engined Tuckers).