I totally agree with Flyboy, it's not a good idea. The SA planes can really get you in to trouble.

That said, if you really want to do it, get the absolute largest one you can afford, and spend the money to make it LIGHT. Don't even think about a .40 size one. The bigger ones are easier to fly, and the lighter wingloading of a light plane will make the stall easier to handle.

Btw, there are some SA-looking planes that might be good choices, but I haven't tried them to see. Planes like the "something extra". There is a plane called the "Magic Extra" that is being flown as a second plane by a guy around here with success. I got to fly it once, and it seems to fit the bill. Light wingloading, soft stall, but still fairly acrobatic.