Welcome to Stovebolt.com.
The 54 grill, fenders, and "grill cover" will bolt right onto your cab/frame. You might also need the inner fenders (maybe someone else will post information on that).
The hoods should be very similar. The 54 hood has a slight difference where the front emblem bolts on, but the hood side emblems should bolt on OK (or, use the 51 emblems).
Do not worry about what we like better - do what you like. Neither of those trucks are original condition, so use the better parts from the two trucks.
The earlier frame is different from the later frame, especially where/how the beds attach.
