You can make most back inflate BC's work, it will function but it's not optimal by far. You need to extend the shoulder straps some AND use a crotch strap to keep the BC from riding up. The other issue is spacing around the top of the BC for the DH itself. Some BCs and BP/wings don't have enough space for the cans (round housing of the DH reg) and can bind them against the BC. This is the reason for the U shaped cutout in the VDH plate.
If you are buying a BC anyway, why not just get the VDH one. It works well with single hose reg and if you chose to use a DH, it works well with a simple strap adjustment if needed. It also offers a wide range of lift options.