Fender Tag Decoding '75 Duster

So far, the codes I can't crack are:
H38 (or V38 )
26 (no letter with it)
CTD
G74
C54
G64
the single C and 0
K6R comes out as the stripe code, is the R for red? as the W in V1W is a white vinyl top? Since the car is originaly Rallye Red, that doesn't make much sense....