This was the first run just testing it out. 

 You guys completely built this from scratch That's amazing! Are there any WIP videos for it  this is one of the best home made mini dozers I have ever seen,,great job and Im building one myself only about twice this ones size,,,good job and my hats off to the builder.  man there's something about that color that's always drawn my full attention. that is a very nice dozer you got there. Im looking into getting a magnatrac.  I think it is a "just see if I can" project and its a success. He done well. Wasn't much snow on ground to push but for a test run done ok. Shows some great skills and creative thinking went into this.  I'm guessing that your cat is a 60's bolens tube frame tractor. I have a 62 bolens 800 that has identical  hood & seat. Looks like a nice toy, neat idea!  Actually, based on my experience with micro-dozers like this, it might surprise you. He just needs to gain some experience with it and get into some real snow (or dirt), not that 1" of fluff! 8-).  then I take my hat off to you and your father as that is a wonderful job,,Im a certiufied welder of over 35 years and name it and Ive built it and must say I like your build here,,The rreason Im choosing the cub is it is super heavy duty with a full size chunk style rear end like a dually pickup,,will make a killer doller for sure but gonna take me a while to build the tracks,,tracks are the key for sure,,thanks man and thats for the sub