I just made a simple bracket bolted to a hole in the top of my frame to hold my stock gauge cluster for engine break-in. It gives me oil pressure, temperature, and charge rate (alternator).
Too much to go wrong with a new rebuild to leave the oil pressure and temperature to chance.
Carl

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission