Sure does sound [smell] fishy.
Why would the sides be rough and still have original ad glass ? The A-38 should have either porceline or decal signs, not painted.

IF the ad glass are original, $400 would be a steal, KEEP the glass, part out the pump and recover some,if not all your investment. Then buy a pump in better condition.

BEWARE
repo ad glass is made for the A-38