We used to have a house in Sarasota Fla and hubby used to go down for 5 to 9 weeks at a time and fish his heart out at Venice pier almost every day and twice a day sometimes. Personally we found Fla annual saltwater and fresh water licenses a really good price compared to many states/provinces we've travelled to. However, you might want to check into whether you need a fishing license when finishing from a "pier"!!! Some places you don't IIRC.
As for what equipment you need depends on what's biting at time you are there. Usually a couple lures to match the fish you are targeting, sometimes some shrimp or squid. Line strength and hook sizes to again match what you are targeting.
Hubby tended to do sunrise to get his bait fish for night time Shark fishing with them typically. He'd use a SC Rig to get his mackerel when running or lady fish that like to shake off quick. He catches drum with mini crabs, pompano, flounder, rays, catfish, snappers near rock outcrops and a myriad of other fish so yes you will thoroughly enjoy saltwater fishing in the Gulf especially if someone is with you that's passionate about it also.
Maybe go down to the area you want to fish and talk to the locals first to see what's biting and what they use (bait shops will sell you a lot of stuff you'll never use otherwise!).
Hubby is a real avid fisherman, to the point he has collected 12+ rods and 4 huge tote boxes/bags of accessories!! He probably uses less than 5% of most of it, and would have a ton more if it wasn't for wifey cramping his style somewhat LOL Skyway bridge, shore fishing at Turtle Beach and others, Seadoo and Kayak fishing at times to entertain me for something different than as I say watching paint dry! Lake Okeechobee here and there, and various other places on that coast side.
Be warned, like most hobbies you can end up spending a fortune on a lot of stuff you'll never use hardly or even open, based on input from many over time.
We even have salmon fishing accessories "just in case" LOL.
Good luck, fishing can be a lot of fun, and the variety of ocean fish is awesome, but it'd be cheaper to buy supper says the woman of the house
Hope the above helps somewhat in your thoughts. ENJOY!