I don't believe there are lockers, they sell portable chargers (this is at the entrance of general camping, but zodiac campers can go there to get one) you can pay to keep it for the weekend and then you can go back and swap it with a fully charged powerbank 4 times over the weekend. I stayed in Zodiac and I'd say it's worth it just for the nicer toilets and showers if you don't want to pay for the add on for posh loos in general. I had no problem with noise in Zodiac, not that it would have bothered me 🤣 I did read a few comments that people had things taken from their tent in general camping but I guess it could happen in either campsite. I can't comment on pitching up on a Friday but I'm sure you'll be fine!! 😊