And the Gordo rebate was probably more then the county clerk hit :thumb:
You should be able to find the WOT rpms for your motor, and find an prop shop's guide to help confirm the 13.25 X 17 is the correct prop for your size LS tinny and its intended usage. The OB was on a different boat after all..........
If it's in the right diameter/pitch range, you might still wait to buy a new one, maybe you'll want more hole shot, top end, bow lift, stern lift, etc, won't know that til you run her. But, yeah. cracked blades would give me pause before running it at WOT.