Try local freeads or Ebay, you could always get a sheddy xr3i for a couple of hundred quid, but if you have the time and space i'd probably have the rs at £500 and sell whatever parts you dont need on Ebay, you can get £200 for a interior for an example, probably £40 for front bumper etc etc, thats just me tho', if you cant be arsed then fair enough!