RE: Go North East
You don't even need that. A simple Harlow Green/Allerdene circular would suffice following the 21 route from Newcastle to Shipcote, then via Dryden Road, Kells Lane, Beacon Lough Road, Easedale Gardens, Waverley Road, Harlow Green Lane, Hertford, Chowdene Bank, Durham Road and Beaconsfield Road to Kells Lane/Dryden Road with another bus running in the opposite direction. A complicated amalgamation of routes would probably not solve any problems in my view.