BigT, I live in Orlando but I am the Sales Manger for American Airboats. The company is based out of Texas but I would be happy to help answer your questions as would any of the guys & Gals from this site. You can also check out my website that has about 200 pages of information. just click on the www link at the bottom of my post. If you still have questions after reading, let me know and I will try to help lead you in the right direction.
For a Ride boat to Haul 4 or 5 people I would reccommend 15x8 or larger.
Chevrolet Engine with a Belt Drive and a Composite Prop. If you staying in florida you only need 25" deep Sides. I would suggest Side by Side rear seating and a triple seat down low.
Prices range depending on all the specifications.
New Boats will range from Low $20's to $40+
There are awesome small block Engine that will do the job if there is a tight budget, big blocks chevys are my top choice if you can afford it.
If your into HIgh Performance you might want to look into a WaterThunder Engine. All depends on your budget.
If a new boat is out of range, there are plenty of used boats floating around Forida that would make you a good boat.
Let us know how we can help.
The people here will treat you like family!