[NH] Try a counter strile at Thetford, then you'll need to use WAGN and six blue podumes via Peterborough I reckon. If the snoods are blonked you may have to side-straddle to Cambridge however. [Zooky,Chalky] V.E.Bott was who sprang to my mind too. [Zooks] Sounds fun to me.
[NH] As Blob says, but be wary of hitting the return loop at Ely or else you could end up being shunted to King's Lynn. Also the 'bus replacement rule' could be brought into operation making the Peterborough route costly in terms of LV. Do not stop at Manea, it is a trap.
I have to point everyone to the Hyperlink game over at MCiOS, where we are having enormous fun with a link to a Spartacus gladiators game. Buckle up your greaves and ready your trident - or do you fear the mighty Magister Panus?