Spinning gear will work fine, if you are a wuss.

If you are of a wussular nature, and must chase one of the best fly rod fish in the world with gear, bring small jigs in earthy tones. Bring a rod and reel that can handle a 100 yd plus run, at speeds that will peel your hair back. One of the books I have claims that a salmon can make a sustained run at speeds in the low teens, while a bonefish can make a sustained run at 27 mph. UNlike steelhead, where we are always advised to have 150 yds of line and never see the bottom of the spool, bonefish can and will spool you if you don't have a good bit of line. A 5 lb bonefish will fight as hard as a 10 lb steelhead.

The area you are going is good. I am going a little bit south of there in April. I am bringing flies in the size 6, 8 and 10 range, as I am told that the water is skinny, and the bones will spook from a larger fly. This may pose problems for spinning gear, as it will be tough to make a quiet enough presentation. The issue is getting the jig in front of the fish without spooking them. Bonefish as really shy.

On the plus side with gear, you'll be able to fish some of the deeper cuts, and be able to get down better than with fly gear, and that will get you some fish. You should also think about finding some live crabs, and being ready to use them to try for permit. That will warrant heavier gear.

As to line strength, I use 8 and 10 lb flourocarbon tippit. The flourocarbon is because of it's abrasion resistance, not because the fish are that leadershy.

Good luck, and have fun. They are a great fish.