I'm taking a wild guess that the only reason he doesn't sell it is because the shop got added long before the stuff was needed in the module. If that's the case, he really should be selling it.

If that's not the case, nevermind then!

Agreed.

I agree as well; though they should probably be slightly more expensive here.

And perhaps Sugriam shouldn't be the only one in Sanctuary to sell potion bottles and bone wands?