I used a saws all to make the cuts, then small grinder, then a file on sharp edges. Used blue masking tape to lay out the cuts. The hardest part was handling the big heavy bumper to make the cuts. You might be able to cut it on the jeep, depends on your tools.
Make sure you leave enough to add a tire carrier if planning to add one later.
Seen a post where the guy closed the ends with the drop off but I think I'll leave it as is. Looks ok plus easier to wash out mud.
Thinkin about finding some edge trim, kinda like they use when trimming fenders, but prob don't really need it.
Took me about 4 hours but wasn't in a rush. A plasma cutter would have been nice to have though.