Chassis Stiffening - which kit? Cage?, Stiffening before paint, need help. Options

[corpselaurel]

I have been reading and searching. So far I have eliminated the boxed trailing arms.
I want to stiffen the car up before I paint. What 'kit(s)' should I install?

I have read read that most of the pieces in the chassis stiffening kit are useless. Should I buy the kit and install the others?

I have also read that engman's kit helps a lot. And I was also considering the Inner Rocker Panel Frame Stiffeners.

I just don't know which combination I should install. Should I use all of them or do some cancel each other out (for lack of better wording). Post links to suppliers if you mention any.

I am open to the idea of putting a cage in but it has to be in kit form. Does anyone sell one and would I still need any of the stiffening mentioned above with a cage?

The car is not badly rusted except for the battery tray and underneath - completly gone. I will be repairing it. My plans for the car are daily driver with some autox. Next year I will swap in a more powerfull engine. Thanks for any help.

[corpselaurel]

My understanding is this: if you box stiffen the trailing arms , something else has to give. Like the trailing to chassis bushing mount points. Very bad and costly. Rips and tears.

I landed a 3 wheel off the ground right turn in my Baja Bug of old that had a solid trans mount kit. Ripped the rear mount horn right in half. (IMG:style_emoticons/default/headbang.gif)  Some areas of the car need flexabilty.

I honestly dont know if the box kits help or not. (IMG:style_emoticons/default/confused24.gif)

In my first post I stated that I have eliminated the trailing arm kit (for the exact reason you mentioned). I am trying to sort out everything else.

I know that some of the pieces in the picture I posted above don't really do anything; I just don't know which ones.