quote the_tool_man:

I am aware of the two sources for pre-fabricated crossmembers. Both are out of my budget. Niether seems willing to share details of their design, for fear of losing potential income, which is understandable. Are there any other sources for plans or kits for this?

Thanks in advance,

Unless you are going flat out road racing, a well done and re-enforced original will last another 40 years for normal driving ($700 – $950 ish). With the use of MG arms, you can correct the ackermann dangle a few %age points for good measure. Whereas if you do intend to push the car thru turns, you DO NOT want a do-it-yourself kit for both your safety and anyone else near you on the road. I work with 7 long-time experience fabricator/welders, but only one of them will I let touch suspension steel.