My Heritages are a 1990 Johnny Smith purchased in 1990, and a recent purchase, A CM 140 All Gold which I think is from 1991.
The 140 had some Shaller stuff on it and exposed Symore Duncan Humbuckers.
I changed that out for TonePros bridge and tail piece an a set of Seth Lovers.
Result it plays fantastic and sounds great acoustically and amplified.
I will post pictures when possible.