Re: Questions on a Full Cage for 73 CJ-5 (Long)
I am currently working on the cage for my 72. I have it just about done and will be finishing up some welding today and putting it back in the Jeep. As our Jeeps are essentially identical (at least they were when they came from Toledo) I can offer some help.
First, I would forget about using the original rear hoop. If you have the same piece I did you will no doubt have noticed how low the top of that rear hoop is. I am 6' tall as well and the factory rear hoop was not tall enough to clear my head, with a bikini top my head was always rubbing the top. The bend radius of the factory roll bar is also pretty big, if you look at where you would have to mount your outside spreaders you will see another downside to using the factory piece.
I built a new "B" hoop that is a little taller and mounts to the tub just like later Jeeps. By that I mean it that it bolts to the "step" in the tub. This requires that you do a little cutting of the top panel of the storage box under the passenger seat, but nothing extreme and it is hidden under the seat anyway. I chose to use a "halo" type configuration in the front with legs running all the way to the floor. I personally prefer a halo to a front hoop, but that is a personal decision that you will have to make for yourself.
I will try to take some pics today and get them posted, that will be easier than trying to describe my cage.
One thing to consider: you trust this guy to build your cage, so perhaps rather than designing it yourself you should leave the design to him. Talk it over with him, give him your requirements as well as your likes and dislikes regarding cage design, and let him go from there. There are a lot of variables to designing and constructing a cage and he will know better than anyone else how his abilities (not to mention tooling) will factor into design and construction.