Rhys, the hilux diff in my ute was shortened to standard 1200 width and the r30 ti wheels fit perfectly without spacers. i used
to run 195/50 or 205/50 tyres. The only other mod to the rear was lipped guards. Even on the track with all the suspension movement
the wheels/tyres never used to rub anywhere.

you could go a touch shorter in the diff and fill the rear out with nice dished wheels which would look great, but then if you wanted
to fit any 'regular' wheel under there you'd have to space it out in order to fill the guards. it all depends on what you want to
achieve with it i guess

any chance we can get a sneak preview of the project?