Scotty, consider this, what if you were to bring a brace up from
the lower end of each front strut meeting at the front center of the
foot stand, that would give you triangle bracing front to rear,
and side to side while only adding two short sticks of tubing.
and maybe just maybe a short brace on each side from below
the rear seat down to a midway point on the outside front
struts on the engine stand. that should stiffen the crap out of it
without adding to much more weight. just a though. looks great
any way you go.