70 340 duster worth picking up?

No I meant it'll be worth around $10k. Not cost $10k to build

I would agree with this! My advice run from this one and buy something you can drive and work on. If you have plans for a complete restoration you would again be able to buy a similar car for much less than the cost to restore already done.

I might waiver on my opinion if the car was complete and had original numbers matching parts or some sentiminal value.