There is 2 ways of doing link rods, 5 link and 3 link ladder bar, its quite simple really, both have a panhard rod running across the van locating the sideways axle movement
3 link is a welded together rod that mounts top and bottom of the axle to prevent twisting, the other end would go to the original front spring mount
5 link is better as it allows the axle to move up and down in less of an arc, two seperate rods
all done with either rose joints or poly bushes and made adjustable so the axle can be centralised and square to the chassis, and with adjustable coilovers the springs can be changed easily to whatever rating you desire and the ride height adjusted to the height you want. All you need is 5 rods, some plates for the axle, rose joints, coilovers and a mounting on the chassis for the panhard rod
And Colin, a twix won,t get you far, this lots worth at least 1/2 ton of jaffa cakes
"you were only supposed to blow the bloody SLIDING doors off"