Hi, one of favorite things to do while down there for 3 months is cruise the "old folks" parks. We are, of course, old folks, too, but don't want to admit it.
Our favorite,and we would live there if we stayed over 8 months is Polo Park East. Polo Park West (just across the highway) is way down the list, so make sure you check out "East"
It is also very close to Disney, but far enough to be out of the craziness.Take 192 west to 27 south. Go south less than a mile and turn left in PPE. It has a really nice 9 hole par 3 course, a huge lake with dock in rear of the park. It is also a park where you can "own the land" you are on and it costs more up front but you are in control of the costs and not subject to lot rental flucuations. Very nice folks there. This is a very popular place and homes sell quickly.
For other senior parks just head down 27 south towards Haines City and once you get south of I-4 interchange you will see 3-4 parks on your left. Just stop in and poke around.
If you like very nice golf mobile home communities take 27 south just past Haines City (you are now about 20 miles from Disney) and take Highway 92 West toward Auburndale and Lakeland. (If you Google Map "Haines City Fl") you will see 92 west and communities such as Sweetwater, Swiss Golf, 4 lakes, and farther west is The Hamptons and Shalamar Creek. We really like it South of Disney because there is less traffic than the Orlando area which is about 20 miles north of Disney.
If you start out in the morning, I think you could stop and tour almost all of these in a day. Shalamar Creek will be about 35-40 minutes from Disney using the short Toll Way 570 up to I-4 and east to Disney. There are many other smaller and more "basic" senior communities along this route that you can check out, but if you are willing to pay up to $450/month these communities I listed will be in your budget. If you do not care about golf, the others may appeal to you, but golf is a separate charge and lots of folks who live these "golf communities" do not play golf...
We have found that if there are sales people around they are very low key, often residents of the park and very easy to deal with. Or just stop and ask someone in the yard how to check out sales. Many of the for sale homes will have yard signs with brochures or flyers to check out. If "for sale by owner" just knock on the door...Heck, they want to sell the place and are usually more than willing to do a instant tour!!
Have fun and let me know if other questions...Ted