for starters, find a E-3 gleaner combine. You'll need the engine off of it. It is the hottest G-226 you can buy. It is rated a 67 hp. It is basically the same engine in the D-17 just 14 hp stronger.
as far a weight set up that depends on drawbar, tires, speed, and the track involved. Trial and error is the best guidance. For starters put 27% of the weight on the front end.
: I'am looking for info on wc pulling tractors like wieght set up engine tips any thing like that would like to build a puller