Beautiful deal then. You can part the car up and get at least $1500 for it in the first case. The pump really thing is making a noise when you first turn on the ignition on the cold engine. Its very easy to spot.
Your datsun is much better thoug. Here in canada they are pretty rare and some of the nicest once go for around $10000 CDN. Modified or rally cars $5000 with dry sumps done engines and susp and some fiberglass body parts.