Really?!? Dude, that would be fantabulous!
For the other parts I'm confident I can cook something suitable as a replacement, but the wench would be a bear to make out of scrap.
Originally I was thinking of making something like Peter did, a tracked water canon (maybe using the pump and water cannon of the #4825). I just have to first receive the snow cat, so that I have an idea of dimensions, and then I'll start thinking hard about what I'm going to put on the bed.