Aftermarket seat belts/harnesses 71 Dart?

I've been watching the XV site for quite awhile. It always shows "out of stock" for the 3-point belts.

http://www.xvmotorsports.com/products/detail/index.cfm?nPID=113&cid=21&cdesc=Interior

72bluNblue, I was just riding/driving in a 68 RR and interested in how you did the "drop" for the harness. I like the XV belts alot, but they did cut too high across the neck. Any help would be appreciated :thumblef: