Well, the 201 last and the 65 last are very similar. In my experience, the 201 last is a touch longer, with a slightly higher instep/cone.
Here's my thinking. The 65 last is a long last, but so is the 201. They're pretty much the same length. On the other hand, the 65 last is quite narrow. The 201 last is around the same width, but it's got a roomier toebox and a higher instep.
Here are your options:
10.5 D Rogue - this will probably be the best length for you, but it might be too wide.
10.5 B Rogue - again the right length, but it might be too narrow. However, since the Rogue has a roomier toebox and higher instep, you might be able to compensate for slightly narrow fit because of the last and because the Rogue is a blucher.
11 B Rogue - will be too long for you but might be a good width
If you are willing to wear slightly thicker socks in the event that the 10.5 D Rogue is too wide, go for that. If you are going to wear thin dress socks and are willing to take a chance, go with the 10.5 B Rogue. Or, order both and return whichever one doesn't fit right.
You could also inquire about having the Rogue made in 10.5C if you determine that D is too wide and B is too narrow - I believe they can do that for a fee (~$40?), but I'm not sure if they even have any C-width 201 lasts to use to make those shoes.
I suspect the 10.5B Rogue will actually work best, given the last and the blucher / open lacing style.
Good stuff- thanks a ton!