The EV system mentioned above is mine. Concept using the pro driver would be the same. I use a plate amp on Alpha. The EV is cut at 200 using a passive 2nd order filter. The Fostex uses a single cap with an L=pad. I really need to take them apart and finish them. They have been in temporary wired state for over a year. The plate amp I am using is the cheap Parts Express 70 watt unit which isn't up to the task. It hums.
Any how, my advise is to stick the your drivers on a board and see how they sound. I think you will be pleasantly surprised.
Bill