The Essex frames have the desired rear kickup, with straight side rails having a deep cross section. They were originally parallel leaf front, which made it easy for three spring configurations. Single front spring required cutting off the frame horns and fab'ing either a straight or curved crossmember. The Franklin steering had the required long sector and a good ratio. Might have been others, but this seemed to be the one of choice. I also have an aluminum housing that uses Franklin internals. "Colonel" Alexander made OHV heads, Winfield carb intakes, cams and other goodies for both four banger and V8 Fords in the mid to late 30's. The original brochure I have doesn't show any Brit pieces, though. Can you elaborate?