just finished work mate
the best chance you would have is ex german mate this will give you good bodywork,i havnt seen any that come close
unless a restorded one then you are talking loads of money!
the german ones are normaly locked in fire houses all there life and also they ziabart the chassis so this helps!
with the german ones you get a few battle scars but bodywork is normaly very good for there year!
to convert to rhd isnt that bad a job if you get a scrapper for bits!
some people go down the old campervan idea and remove the windows but takes some doing to get it wright!