Or the easy way.You could borrow one from someone and use it as a mold . Made all four of my trailer cradles that way. For the wheels ,just fill in the square to a round using the axle or a piece of equal size pipe or pvc for the fillet. If you don't have one to borrow Jake's way would be the program.

PM sent. I may have a spare set to sell.


"I said, now, I said ,pay attention boy!"

The cure for anything is salt water - sweat, tears, or the sea
Isak Dinesen
If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most.
E. B. White