At 13 5/8 you could easily put a 3/8 inch spacer in it if it has a pad. A thin English solid pad if no pad exist. A lot of 13 5/8” stocks with a pad are 12 5/8” or 12 /8” which will look hideous with a couple three spacers and an inch thick pad. Worse still with a 1 1/2” Silvers reproduction pad.
But perhaps the more important point is how easily will it be to sell later? I know a lot of guns, with 26” barrels, which are a [censored - come on man!] to sell these days. Those get heavily discounted. Even 28” barrels are not in prime demand. A short stocked gun will not be an easy sale. Your best guide might be to research what similar guns sold for on GunBroker with 28 & 30” barrels and adjust down from there. Blue book gun values does not work anymore. Listen to John, he most likely has forgotten more about your subject gun that we ever knew.
