Single hole? That almost sounds like a TJ hood instead of a YJ.
How about using a rubber bumper like the ones mounted on your tailgate for the spare tire to rest against? You can get these from NAPA for a few dollars. That's my only guess.
'87 YJ, 4.2L built and bored, 8" of lift, 8.8 rear, AX15/NP 231J, Tom Woods drive shafts, Flat fenders, 12,000LB winch, Custom bumpers, Rattle can paint job. Never completed...