Early A experts, opinions wanted
If you're looking to keep the same drivetrain, pull the rear end cover and check the gears for pitting.(especially the spiders) If the 903 trans and column shift parts are good it would suprise me so figure having to put some money in that. Those ball and trunion type driveshafts are another trouble area to check. If the engine is good, everything else should be relatively minor. The brake upgrade mentioned is highly recommended! Have fun....
Thanks, Mark