If He hasn't responded as you say, then you are taking the correct action.
You may want to call the game and fish in that town and see if they can check this guy out for you.

7 months is really not as long as many think if the guy is busy, and he might not be all to blame, the tannerys can take their sweet time also, I have stuff from last year that now is when the skins arrived from the tannery.

Some guys do their own tannery but sheep and goats really need to be tanned and de-smelled or you'll have a stinky mount for years.