Claiming a double century

Hmm, this sounds great! and I like this route (mainly because I'd just have to run south a bit at Bungay to get to my dad's)
Edit: although the bit of M1 around Cambridge might be a bit sketchy ...

Ok just looking at a rough plan. Hopefully someone will help out here;

London up to Cambridge
Cambridge to Kings Lynn
Kings Lynn to Dereham
Dereham to Watton
Loop under Attleborough round to Bungay up to Hales and in to Norwich on the Rockland St Mary road.

ala ; http://g.co/maps/rpsh4

Seems like a nice route, I know the roads from Cambridge through to Norwich are nice and quiet but still pace through places where we can pick up supplies.