That's a good point. Hard Dog will custom make a bar for you if you want, and the price is very reasonable. Several years ago, 71dsp had them custom build a bar for his wife's '99 Miata. It was a double diagonal Sport made with Hard Core diameter tubing and a custom fabricated 3-bend harness bar that attached to the main hoop uprights on both sides. They also agreed to ship it unfinished so that he could get it powdercoated locally.
I think one of the other members on this board (Adam?) ended up with that bar, but I have no idea where it is now.