I did notice 1 think looking at your pics. your tunnell isant done with the welding yet as the top is still open&you can see the shift rod&cables, you need to get that all welded up real good or it will flex/bend, that is the main structure for the vw, and even with the "frame" in the glass body that still is a very inportaint part of the chasie and needs to be rigid, just getting in & out can bend/warp/flex it.
I plan on narrowing the rear torsion on mine for biger wider tires when I pull the body& do the rest of the mods,I want tall wide tires& no rubs.
thats a good price on those adjustable spring plates if they dont stick it to you on the shipping. and no they do not alter camber, you will probably need to get new rubber/polyurathane bushings too for each side of the spring plates unless your are good(most arnt, but they may of been changed at some time.)