The mating season's just started, so you're a bit early for hatchlings yet. If you don't get many replies, it might be worth waiting a few months and asking again - or keep your eye on the UK reptile online ads.
If you can get to Darlington (sorry I'm on the south coast, so anything beyond Yeovil is "north"!), Coast To Coast get shipments in from Serpenco, which is owned by the guy who runs this board. Follow the links to his site for a wide range of stunning Corns, but be prepared for your bank manager to start crying!