TR3 brake M/C upgrade

[Hctcbob@aol.com]

I vintage race a '59 TR3A and would like to upgrade the single M/C to a dual
system.  I'm sure this has been done before, and I don't see any reason to go
"where no man has gone before" and experiment. The brake lines are easy, but
there isn't much space for a M/C.  The TR3 M/C goes inboard unlike the TR6
unit. Maybe a Spitfire unit would fit, but does it have the "ummph". Does
anyone know the best vintage legal modification?