welcome to the forum John,
yes indeed Fabrun,s cad work is stunning indeed
the TR5 rail can be put on the opposite side but this also depends on which engine you fit as to whether you can fit TR5 at all, my engine install doesn,t allow it to be fitted (cvh engine).
Not sure if the engine you mention will fit/ mate with a ford box, don,t know anyone using that engine either.
good luck with your poss future build.
ps. my sister used to live in your town