Where to have tranny input shaft resplined?

OK, so I'm thinking "Outside the box" again and have a WAIT (Wild A$$ Idea Today).

I have transmission "A" and transmission "B" (most of you know where this is going already). Transmission A has a male output shaft, 21 spline. Transmission B has a male input shaft, 10 spline. I want to connect the two.

Here's the kicker. Transmission A also has a slip spline output (I have the slip shaft).

My thought is to have transmission B's input shaft cut down and resplined to match transmission A, so I can use a female collar similar to the SM465/NP205 setup. So where can I get this done? I have looked at all the machine shops up here, and they look at me like I have 2 heads, even "East Coast Performance", who stocks spools and other nice off-roading items on the shelf. Once I explained it to the guy for the 3rd time, he finally got it, and said he'd give Moser a call. Heck, I can do that, no need to pay the middle man. Anyone else I should give a shout?

v8jeep, did you ever find a place that does resplining in Maine?

Mangler, what was the shop down there that cut and resplined the Scout axle?

JEEPN
Winter Harbor, Maine
'81 CJ-8 Scrambled, It's a Jeep, Chevy, IHC kinda thing!
'88.5 Zuki, 5" Calmini, Locked, Swamped, Rolled, and just generally broken in right!