Hey Daredevil,
Go to your local Wal-Mart (or any other place that sells it) and get your self a bottle of Castrol Super Clean, it comes in a purple spray bottle about a quart, or if you need alot of it, you can also buy it by the gallon....but the quart will last you awhile anyway.
This stuff will take off any kind of paint, acrylic, enamel, lacquer, doesn't matter how long its been on there, and it will not harm the plastic.
Just spray it on, and cover with plastic wrap, and let it sit for a day or so or if you want, you can get a rubbermade or tupperware container and immerse the subject in it.....the paint should basically fall off of the kit. You will need like a tooth brush to get into the cracks and crevaces, but other than that it works awesome.
Make sure you wear gloves when handling it....its not really bad or corrosive, but it is slippery when you get it on your hands, and rubber gloves give you a little bit of control if you get the stuff on your gloved hands.
Clean up with some luke warm water and you have a brand new subject to repaint!!!!!
I actually have an old 1/32 Revell F-14 Tomcat that was painted year ago by a friend of mine, and I am going to strip the paint and repaint it for him. Just have to find a set of 1/32 decals for a Tomcat!!!!