the rack in the picture, above, only needs 1/2 of the right side.
according to the left antler it's pretty much straight.
make a mold of the left side and attach the mold to the right, there might be
two inches of a turn that you will have to epoxy in.
here is a picture of a buck that was missing 32 inches, I molded the opposite side points and moved them over.

here is the finished copy.

I've got a floor full to repair.
Marshell