Following the screw pile install this week we had the steel framework installed. Lovely job. Only 1 issue where 1 beam which is below current ground level was blocked by a large concrete slab that we didn't expect - solution was to fit it about 50mm higher than the rest which will be fine if we cover in concrete.
Now that's in, we can order the beam and block. Just waiting on SE to confirm a slight change to that. So probably 2-3 weeks until the area is ready for storage etc but great progress. Even got a hornbeam installed to provide some screening for the neighbours.