Currently trying to sort out some more yellow bricks and the roof trusses.

A miscalculation on how many yellow bricks I needed led to a shortfall of 100 or so. Major problem was going to be cost - they would only sell me a palette work (approx 400) and a delivery charge was £85 :(

Roof trusses were much better managed. I purchased a ‘How-To’ book from the Trussed Rafter Association. This was extremely helpful enabling me to understand what to talk to the suppliers about.