I hang out at quite a few airfields around Orlando and I don't recall ever seeing any FBO's or Fight Schools with Cirrus on their rental fleets.
I would suggest though, contact Barbara at Florida Pilots Association she owns a Cirrus and does quite a few Angel flights and asks around for any Pilots who would like to accompany her on the flights, might be the next best thing to a rental while you are in the area, or she may in fact know of a rental Cirrus hidden away near Orlando
Here is the email addy for our club which Barbara runs -
[email protected]
Good Luck