Learning to cast a fly line isn't that hard--learning to do it accurately and at a distance in a short period of time for a 1 day charter

Maybe not the best idea........ Just sayin

I haven't fished the salt but friends that have have said you have to deal with wind and be able to pick it up and put it down where the guide tells you,when he tells you

A good river/stream fly fisher deals with these at times but the salt is another story

If I was going to try it , I'd head to Hargrove's and see if he could help me do a crash course or refer me to someone who could

Don't want to rain on your parade but you might want to stay with spin or bait casting gear at least to start catching fish.

Maybe some of the hardcore fly rod guys could give you a better idea of what your up against

Good luck