A few months ago I was in the market for a "small" dozer and I looked at the Magnatrac, but it's just a big TOY. It's good if all you want to do is maintain your driveway, do some light landscaping, or pushing around some loose dirt, sand, or gravel, and an occasional loose rock. But I have a hard-rock mining claim & I needed to break loose and push around rock & dirt, cut access roads, etc. , serious dozer work, so I opted for a CAT D-2 with a manual 6-way blade (Hyd. lift) & PTO . I can haul it on my 16 foot trailer with my 3/4 ton GMC pickup.
I strongly recommend that you think about what you might be using it for in the future, and not just for your immediate needs. There are a lot of good, small dozers out there that are capable of doing serious work and are not just over-sized TOYS.