why don't you use the one's from your cans you're trying to sell and sell your cans without the speakers?
i doubt you'll find many folks wanting to sell the new JL's with sport grills, espeically since there's not much better sounding or as nice looking out there.
or are you looking for the older white ones? i'd post a "wanted to buy" on here and WW. you never know.
one other suggestion, you may want to measure to make sure you have the clearance to flush mount them.
2003 X-2 MCX