SPADs aren't kits you buy. You build them from chloroplast signs and plans you can get for free on the net.
Check out
www.spadtothebone.com
I've not built one, but that spadet is really nice looking.
If you're not into building, about the cheapest trainer around in ARF is the Lanier Explorer 40 for $84, but for 20-30 bucks more, you can get a Hangar 9 Alpha or an LT-40. I've not flown the Explorer, so I can't comment on it, just noticed it in the Tower book the other day and thought, "wow, that's cheap for an ARF." I have flown the Midwest Aerostar, Alpha, and LT-40. Of the three, I thought the LT-40 flew noticeable better, but all three are really good, gently flyers. The LT-40 just floats in smoother and was easier to land.
Just my opinion, worth what you paid for it!
Good luck,
Heath