The passenger leg has some witness marks on it, so it is very close and obviously has touched at some point in time, but not rubbing consistently.
The front brace does fit "tight", but didn't have to massage anything, it fits with no problems. If things seem to be a little challenged for space up front, it's probably due to being squeezed by the Alradco Radiator and Ramcharger Dual Fans I have installed.
I've heard ,As Undercover87T suggested, to have a small rectangular steel plate made up, drill and tap it and mount your two side bars to the centre point of your frame on these. Should space the two side bars slightly away from the larger SLIC.