Racing Harness *HELP*

[slow40sx]

Hey everybody, I know i'll probably get flamed but anyway. I just bought a Memory Fab S58 one piece race seat and a Crow Enterprizes 5 point harness and I went to mount the harness to the floor in the rear where the rear seats used to be like i've seen before, but the harnesses are to short, they clearly would be perfect if I had a harness bar but my Safety 21 7 Point doesn't have a harness bar on it (for what reason I have no idea). Last resort I'm going to pull the main hoop out and add a harness bar but before I do that I was wondering if anyone makes a harness extender, a solid strap that bolts to the harness mounts and then to the floor giving me enough length to mount the harness at the correct angle. I've looked for 3 days and I can't really seem to find anything if anyone could help me out that would be awesome, thanks in advance.

PS. I know a harness bar is the most efficient way and all but i know the harness can be mounted to the floor I really don't need any badass safety experts to come in here and school me on anything i'd just like my question answered please and thank you