I'd also pick the 401A, if I had to choose. Mostly because, like Manalto said, the others are easier to find, especially the 15-91.
The 15 and 201 should fit in the 401 cabinet, but they'd need a lift assist installed to fill the gap. The 401 needs a different style front flap than what is typically found in a 15 or 201 cabinet. Or you can modify those to narrow the front lip and put the 401 style supports on it. The hinge pin location and size is the same.
Also, the 15 or 201 cabinets have to be the style with the lift assist- which you would remove so the base of the 401 can fit. If it's the style without a lift assist, than the 401 will not fit.