Yeh saw that thanks Pat, wanted to source closer to home if possible..
Yes been there Sean thanks, done all the searches using various such as Dronsfields, Partsgateway etc. Like I said earlier, some greedy breakers out there considering new part is £650 from Merc..
Awaiting pics of one from 60K breaking for front end crash damage. £140 delivered - more like it. Told guy I need to know it's fine 'underneath' ie above the frame when attached to car - the bit you can't see when in situ
Thanks everyone for help and advice so far, whilst waiting over the holiday period I'm taking the advice of Delucas and getting a few more pro opinions on welding, but as I said in another post, the car is otherwise mint and selling on is not what my wife would want
I'd rather cough up and get it right, replacing the subframe (and brake pipes whilst everything is off) and then waxoyling or sealing underneath woulld seem like the way to go.
Don't suppose the owners in Florida or SoCal have this problem, weather not quite the same as NE England...