[neallewis]

I really don't see what you will achieve making a new chassis mounting you servo as you describe?

The car works great out of the box, with low-profile or 1/12th servo mounted in the stock position. There is plenty of room to mount the radio gear on the chassis without it hanging over the side. just look at the many examples of other peoples setups here or on the gt12 facebook group. mount your receiver in the position described in the manual, up front. This leaves plenty of space to mount the speedo without it hanging over. If it really hangs over that much, it must be a jumbo sized unit, and i'm sure it would be cheaper to replace it for a new £50 1S unit, rather than going to the time, cost and effort to remake the perfectly good chassis that comes with the kit.