Starting our Allotment veggie garden - the rough plan

Here is the plan which shows the rough outline of our allotment. It is mostly south facing but with about one third shade in summer due to a large tree. The slope is slightly downwards from east to west. It is a half size allotment at the top of the site. The reason it says at the bottom "very sunny - or shady - possibly" is that this is the border edge with our neighbour who has also just taken on the other half of this plot. She may want to put up some vertical fence to give her a south facing backdrop for vertical crops, which would make the adjoining strip of our plot possibly a bit shady. We shall see, but for the time being I'm trying to keep that area flexible.
We got the plot from David, who at 84 is a testament to the health-giving properties of allotmenting! He is moving to a plot lower down the slope, as carting muck up the hill in a wheelbarrow gets a bit much for him nowadays.