MR4-BX Spares/compatable bits

[samd]

Hi Guys, Ive just got hold of one of these to run for a while, but no spares!

The bits seem to be had to get hold of and expensive, i dont really want to be spending much more cash getting spares, so does anyone know if parts from other cars will fit in a trackside emergency situation??
Will BMAX wishbones fit? How about B4/B44 wishbones?

The car looks strong to me i am assuming only the usual bits break, wishbones/hubs/shock towers?

Ta SAM