Wow! Yer really gettin' into it! I wish I had the time to spend doing my little OC-3 but I have a lot of irons in the fire at the moment. I am building a snowplow frame for the 4WD tractor here. (it is of the other color green) After that I have to get back to my carpentry project in the house. It is an old house and I am in the process of converting the old woodshed into a usable living space. It is all done but for the ceiling and that will be a raised wood paneling...Oy! And I keep watching out the window because I am sure the sugaring season is creeping up faster than Iwish to admit.
    You should take pictures and post 'em here so we can see your progress.  Glad to hear you are have sent the motor out for a rebuild... should have plenty of power after that!  
    Good luck with your project!
          Cal