The DSE unit fits like a glove. I'm using it in my '72 and have it installed already. They sell only the 4 point unit, I had to go to a local chassis shop to get the front halo and down bars fabbed. Good materials along with excellent instructions and fit. The crossbar is long so that you can do it the way you want, it will have to be cut and possibly bent depending on your installation preference.
__________________ Tommy
1973 Camaro - Fast burn 385, baer, hotchkis, hydraboost, 700r4, vintage wheelworks v-45s, finished 2007
1972 Camaro - Project Fool's Gold - LD 3-link, DSE sub-frame, LS2 stroked to 402, TKO 600, In progress
S and W is the least expensive, upgrade to the pro-street rear bars if you want to retain the rear seat. You will have to fit and weld but most require that.
Thank you for the links. I think I am going to go with AM, they are close (I can go pick it up)and with the few mods I want to do it is the best bet at this point. I can have them add a couple of rear bars exactly where I want after I get a few things in the car sorted out. It will be easy since I can make the trip right to them.