I would suggest carefully measuring your own air draft. On my 32-3, I seem to recall my air draft was 47’, not including my VHF antenna. Before I sold her, I was closely calculating whether or not I could get under that bridge. However, my new boat has a 50’ air draft, so I am out of luck there.
If you pull a metal tape measure all the way up on your main halyard, you can then measure the distance from that sheeve to the toe rail at maximum beam. Then add that length to the distance from the toerail to the water. You will be slightly overestimating your mast’s air draft, which would include a useful safety cushion. (add 2-3’ for your antenna too.)