Thanks! Going in blind so all advice appreciated.
On the electric point - we've bought a campervan power hook-up and every festival we've been to in the past has been not too dissimilar to what you'd find at a campsite, just wasn't sure if it was the case for Bearded Theory.
Received this email from alt. Tickets:
"Stewards will direct you towards the power hook up field. At the entrance to the field your hook up vehicle pass ticket will be scanned and exchanged for a vehicle hanger and a campervan window sticker."
I think it's more possible that Ezra is a guest at Phoenix, since he was guest on their last concert.
Could of course be that Thomas or the rest of Phoenix comes to VW too.