[greglepore]

I've had a 914-4, a 914-6 2.7 hillclimb car, and an MGB. MGB's are not in the same category, remotely. They are "antique" cars at this point. They are pleasant cars to tool around in, and can be thrown around at relatively low speeds, but I don't think they're what you're looking for.
If you are, my ex has a very neglected one with a good body and fresh motor that hasn't been run in a longish time that I could probably hook you up with.

Good examples of any of these cars are more expensive than you might think. There are plenty of "driver" B's out there for under 5, but they all have rust issues that might scare you. They're perfectly drivable that way so long as the rockers are good, but might put you off. Good ones are north of 7.