Found some spare time today so made a start on the exhaust
Made a flexi hose to go between the downpipe and centre box then discovered the downpipe would need to be shortened so the flanges on the flexi section cleared the crossmember, ho hum

Chopped up the centre box, rewelded the pipework, added a short piece of tube, added another flange and ended up with this
Before

Ready to fit (minus hangers)

Cut off the hangers off the chassis, turned upsidedown, repositioned and welded back onto the chassis then bent some round bar to make a bracket for the exhaust box at which point the regulator I recently bought to use a disposable argon bottle for stainless welding decided to disintergrate