Here you go;
http://www.wheelspinmodels.co.uk/i/25455/
A good starting point on the XX for all surfaces is 30wt oil in your shocks all round with the kit 'red' pistons... I always seem to end up running pink springs on the rear & greens on the front. The shocks mounted in the holes as suggested in the build manual in all cases except on the rear wishbones... I have a CR 'Kinwald' but have fitted the original spec XX rear end, the shocks mount into a hoop on the front of the arm, the hot trick BITD & what I have also done, is to cut off this 'hoop' which allows for an extra outer hole to be drilled - I always run my shocks in this outer hole, the extra stability it gives is noticable (just watch your clearance with the rear wheels - the dished XXX wheels are wider than the XX wheels)
^^^The wishbone nearest shows the 'hoop' cut-off - the extra hole hadn't been drilled yet^^^