Advance-Design was the term for 1947-1955 Chevrolet trucks.
GMC trucks during the same years were called New Design.
During 1955, the GM truck styles changed to Task Force Chevrolet and Blue Chip GMC.
The major significant enhancement in 1954 Chevrolet trucks was the standard high/full-pressure 235 engine (and the 261 engine available in some of the large trucks. Also, the 1/2 ton rear-end ratio was changed from 4.11 to 3.90
There is a 1954 Engineering Features manual that describes many of the changes in 1954 (a link to a copy of that manul is on my website).
As posted above, it is impossible to predict/estimate how much money and time will be needed to get it running/looking to your satisfaction.
As posted above, look for parts listed for 1954. 47-54 or 47-55 might be OK, but there were small changes over the years in brakes, doors, interiors, etc (seats, headliners, knobs, door controls, for examples).
Post questions here, when looking for parts. Check out the Links and Tech Tips on this website.
Good luck - enjoy your ride.
