A lot to be said for running the same car, one box of spares, you break a wishbone on the B4 you aint gonna fit a rat one,
you will break wishbones, towers etc, why not have one pool of wheels/tires/shock springs/bearings/screws/nuts.
I know the B4 is imperial, is the rat metric? = 2 sets of hex tools/spanners
(no prize for the first to tell me a rat wishbone goes straight onto a B4
)