That's a steal Bigdawg, I'd hop on that thing in a hurry. Tha 250SX is a great all purpose trike (shaft drive w/ reverse, electric & kick start), and I'm still kicking myself for selling mine.
If it's complete and the motor turns over w/ compression and isn't too rotted, I'm thinking you could easily flip the thing/part it out for a profit if you decide it isn't worth fixing.
Check the oil for water, see if it's got spark & compression, bring some starter fluid and see if you can get it to fire.
Oh yeah, just a WAG (without seeing it first), I'm thinking you could easily flip the thing for $200 if you just wanted to make a quick buck. For 50 bones I don't see how you could go wrong.
Current trikes owned:
1985 Yamaha Tri-Z 250...fully restored
1985 Honda 250 SX...nice survivor original condition