To update this my customer has had quotes of £1500-£2000 to cover a cut to size plywood top about 1400mm x 615mm with copper, as I understand it that's me suppling the ply and cutting it to size for them to just cover.
Customer thought it sounded a bit expensive so has ordered a piece of copper big enough for about £300 and reckons we can do it between us
I do know a chap who has a big metal folding machine who will help me out which is useful.
Don't know if this is a daft question but can you cut copper with a router? I was wondering if I could just cut the plywood top to size, adhere the copper on slightly oversize then trim it flush with a flush trim bit?