How much for an F-12???????

Ran across a guy who has an F-12 from what I gather. has the steering wheel going straight across the top and all but is missing a fender. It's on full steel wheels wih the rears with the spikes on it. The engines stuck and the machine is a smooth brown in color and it looks to only be surface rust. I think everythings there at least from what I can see. I'm guessing it has a magneto mounted on the flywheel like a car because I'm not seeing a generator or alternator. Some small dents but nothing too serious. Nice machine really with lots of potential I'd say. in some cases I'd rather a stuck engine too since sometimes it means the toleraces are still tight.

What's a fair price to ask? I'm thinking that this dude just wants to get rid of it actually by the way he talks. Might swing it for a couple hundred but I'd like to know what it's worth tops.

Does someone do babbiting for these blocks and are parts even available. The steel wheels ar neat but I can't use them on the road so I might just pass altogether too unless it's a worthwhile project. I love 1920's cars and I'm thinking this might go well with my collection.

I don't think thats true. I mean, in one way it is true, the tolerances are too tight which is why its stuck. The problem is when it frees up its quite likely to have (or develop) a broken ring. Its also real easy to break other stuff if you hurry while freeing up a stuck engine.
This isn't to say a stuck tractor engine is the end of the road but I don't think I'd ever prefer one...

This is pretty much what he has except it has a funky looking fender

..... Now I might just grab it for sure.

Can I get aluminum pistons for it?

Funny that a fender could be rare. Especially these, it looks like a big 55 gallon drums cut to fit but it is indeed a fender.