Look up the Gritstone trail, you can park at Disley train station where the trail starts, head through Lyme park and up onto the tops. Its a lovely run and ends up near macclesfield after 35 ish miles. Choose how much you want to run and then turn back.
Rivington Pike isnt too far away, has really nice routes round the pike and the reservoirs.
There's loads of runs out around Glossop way but im sure there are others around those parts that will know the trails much better than me.
ps, i can vouch for the Saucony Ride 7s, I have done close to 500 miles in them now and they look like new. The soles on them are really tough! They are a light shoe as well (in comparison to other well cushioned shoes)
Mine normally last around 6 months but depends how many pairs I'm rotating at the time. I usually go over the recommended 500 miles unless they look buggered or I'm feeling niggles in them. I wouldnt normally go much above 600-650 miles though.