If it has points still run a wire from the battery to the + side of the coil and jump the relay, if it has electronic run a wire from the battery to the ballast and jump the ignition.

If you want to drive it give the wheel a tug and it will pop the wheel lock, for the shifter ground the NSS terminal on the starter relay, disconnect the shift linkage and put it in drive, it will start in gear that way.

I pretty much just told you how to rip off a car but it's the same method you use for getting a parts car out of the woods.