I've had good luck with deer bone on rough shell like that. There's zero certainty that a pair of AE or Alden firsts won't have exactly that issue. As shell has become more popular, the number of these questionable examples has increased dramatically.
There's no question about that. I have a decent fitting pair in 8D and special ordered the same shoe/last in 7.5B for sockless wear. Guess what? The 7.5B fit about a half size bigger than the 8D. Too much hassle for me.