Sounds like fun. Two men to a boat is a good way to go. I would urge you to get trip insurance if you don't already have it. November is still hurricane season down there. Even if you don't get a hurricane there could be a lot of rain and wind.
Your 8wt should do the job for you. This is not the place for a moderate action rod. You need a rod with a fast action to extra fast action. Remember to always check your feet before you make a cast. You don't want to be standing on the line during the cast and especially after a hook up. If you get hooked up with a bone you have to immediately clear the line and get the fish on the reel. Use a strip strike and then jab the rod butt into your belly so the line won't wrap around the handle.
Two things I would suggest to take are some sun gloves to protect the back of your hands and a hat with a cape to protect your neck. Even though you will be there when it is cooler, the sun can still get hot after a long day.