I had been looking for a rack to transport my kayaks and canoes and lucked out, again. I found a used TJ safari rack ,, really really cheap, $75.00.
The front windsheild mount plates had to be modified by drilling one new hole and grinding off a corner for the TJ mount to fit on my YJ windsheild hinge.
The rest of the brackets fit perfectly.
For my shovel mount, I wasn't going to spend all that money to mount a $5.00 shovel. So I took some 1 1/2 PVC and 2 hose clamps. And mounted the pipe on the rack For the time being I drilled a hole on the handle and have it secured with para-cord tied to the rack.