I cant speak as to how busy or if he does custom orders (he told me he did) but I have 4 sets of his grips and they are works of art....either keep trying or Im sure someone will chime in with other sources...bunch of them out there... ....good luck
It's actually Joshua Austin and yes, he does custom work. And some very exquisite work too. He did a set of presentation walnut grips for a pistol I donated and we raffled off at the last Fun Shoot. I'll send him a link to this thread.
as much as I like the grips he made for me...their design makes it hard for 2 hand shooting...my problem not his...good luck