I think a re-shuffle of priorities ought to see you right, as others have said, custom is rarely required unless you have very strange bodily dimensions. And if you do really value the fit, then you'd be better off spending money on the bikefit, then less on a frame. Personally I wouldn't bother with some old lugged thing from Goff, unless you enjoy waiting more than riding.
I think a re-shuffle of priorities ought to see you right, as others have said, custom is rarely required unless you have very strange bodily dimensions. And if you do really value the fit, then you'd be better off spending money on the bikefit, then less on a frame. Personally I wouldn't bother with some old lugged thing from Goff, unless you enjoy waiting more than riding.