wel im glad i got the answers i wanted, as iv just bought a standard non rs box to throw on for the time being, and im going to use my old broken box as a basis to build up a new box to wotev spec i want, then fit it when funds and time allows.

seems the best option.

i was just fed up of phoning places and being told that a diesel box would b better than an xr box because its stronger, sum ppl believe far too many myths these days