Getting it welded back up, hopefully that will hold it. Talking to some fab guys, looks like the welding was not a great standard, so that has not helped the situation. Will see if that does the job. Failing that, il get it replicated buy a company to a higher standard.
I'd say there would be a big order coming your way if you do that. Just wait for the list to start.
£200 manifolds anyone??
ps, would be interested if you could make more.