I got one from Stewmac. Can’t remember which one it was though. I think it was the E. Looking at the diagrams/manual on the side for each one will tell which one you need.
The M or E Schaller can do what you want.
Depends if you want full double humbuckers in series in middle position (M).
If you want them both split in the middle position, both can do it.
The diagram would then indicate the difference being which split coil is being used in position 2.
In any case you would be "limited" to 1V/1T.
Look here, or just use Mincers link, it goes deeper.
Btw, I have a 10way switch laying around somewhere (double banked 5way). I've yet to figure out what to use it for. I just know I'll need 30ft of wire when I do!