Just completed my Mercury build, frame was the one on eBay a few weeks ago, the hub was originally a non disc/internal gear mechanism, from my Kalkoff Endeavour, wheels are DT Swiss TK540 rims, with a Dura Ace hub, thanks to Dave Whittle at Thorn for help with the hub and rack fittings, triaesthete (Ian) for the disc, calliper swap and Jez Barker (Bay Cycle's) for the wheel build.
Mark