I have been unsuccessful in finding trails in the peaks
Since no-one’s bothered to say it, there are loads of guide books to the Peak, you can even buy them at Tesco in Glossop, or you could anyway. Try the Vertebrate Publishing Dark Peak guide book for a start, covers all the obvious classic trails.
Then sit down with an OS map and work out what’s just off them, joins stuff up etc. There’s blindingly good riding in odd places like the Goyt Valley, over above Hollingworth etc and none of it’s really hard to find.
As for driving to North Wales, that’s four hours you could be spending actually riding your bike. Anyway, how about a few of the local Manchester-based riding groups/clubs as well? Blah…
Oh, and I quite like the Marple/Mellor/Roman Lakes stuff, it’s nice when its wet and blowy over this side and, if you hook up with a local who knows the trails, there’s some quite unexpectedly techy and entertaining stuff tucked away in random places.