Pricing ??

Ok i am deciding whether or not to buy an 1989 CRX hf. It isnt that simple though, the rex is and automatic, white with a small amt of rust around the rear fender ( like Ussual ) the car has only 175 000 km on it. The interior has been well looked after, what do you guys thinik it is worth, he asking 2500 (can) i am planning to do a b16a1 engine swap, in it, can it be easily done in an auto or is this just a rip off and a waste of time??