Jake.. has this been done before…take some 6” schedule 40 PVC Pipe the length of the keel...cut it in half…heat up one end to form an upsweep...contact cement some carpet on the inside and have a couple short lines from the front of these skids to the forward chain plate so they stay in place when the boatis drug along… might be poor mans beach wheels to transverse soft sand.

Regards,
Bob