I've got an English thread, 68mm shell, 111mm axle (double chainset), veloce BB from around 2000 here you're welcome to for free if you pay post and packing but I must warn you it is rough and only really suitable for a hack bike not a beautiful restoration, probably not worthy of a concorde frame and I would only give it away on agreement that you bought the fitting tool from me for a fiver.
BB - free
Cyclo fitting tool - £5
P&P - approx - £5
If you don't mind using some thing new and non-campag, Miche and Tifosi do some very nice BBs that work well with campag for much less money.
What chainset/cranks are you using as that is vital when selecting a BB