To answer a few qs:
We're starting from my house - car park available in the Recreation Ground [almost] opposite.
To enter 'on-the-line', bring an entry form [already filled in please] plus payment and an SAE [unless you're one of the Essex Peloton, when I can carry validated cards around in my saddlebag until I see you next].
I'm assuming you have the route sheet from AUKweb or previous brevets. Note AUK web is down or at least convalescing at present. I can print route sheets if required.
Other start points on or near the route = extra proof-of-passage needed, use the spare boxes on the card to indicate alternative start/finish.
Get here early if you want tea'n'toast.