The strut rod bushing washers are suppose to face outward-they look reversed but it keeps them from binding/limiting the movement of the bushings. The best book on Mopar suspensions is by Tom Condran. After reading it, I went to Burien Frame and Axle and pestered Jerry and Mike about the...
If you can, gusset the k-member at the p/s mounts, the lower suspension mounting spots, weld up the perimeter of the k-member...tighten 'er up and maybe throw a box from a cop car in there! WHEEEE, doggy.
My suggestion is to talk to a good alignment shop about what you want out of your car and the options you are comtemplating. An excellent book by Tom Condran called,"Performance Handling For Classic Mopars," is still available @ A.C.M.E Mail Order
PO Box 282612...
Check ADDCO & Hellwig as possible sources for bars as well...my buddy's wife has a '66 Dart GT w/ a front bar that appears to attach by/through the lower shock mount area(took a quick peek, no mental notes!).