Hi Tre
I can only echo what has already been said, but also I thought I'd read a thread on here a few days ago that mentione the food department in Lathams has been increased in size, so you may not need to go to Stalham for the Tesco's on your arrival.
If you are planning to eat out most nights, you may find you will need to moor fairly early to get a space as you are in the height of the busy season. It's just as nice to moor away from the pubs sometimes, and have a quient BBQ. Just make sure when using the disposable BBQ's that they are sat on something that won't burn on the bank, not directly on the grass or wooden quayheading as they scorch badly; and certainly not on the boat! (Yes, we have seen BBQ's being placed in the lid of a gas locker ).
Also, if you were to moor in Fleet dyke at the entrance to Salhouse Broad, or at Ranworth Staithe, there is also a Chinese in South Walsham that will deliver to your boat!
Have a great time.