Just a heads up for anyone building the kit in the side servo layout as per my pics above. I found I had to remove material from the ball cup, chassis brace and side of the servo horn as I had interference between the top of the horn and brace and between the horn and drive shaft.
Also , the optional aluminium servo horn does not fit at all in this setup and the Lunsford ball studs (rb6 kit) are generally too long and will rub the outdrives, front drive shaft etc unless you cut them down a bit.
Also, if you are planning on running RB6 rear arms you need the rb6 inner hinge pins! Doh.