Had to have the new base because the existing terrace has the compound fall in two directions, not a lot but enough for the shed builders to say too much. The corner bit though for the small shed is almost level which means I can easily level the bearers after its built with a crow bar under the dipping ends. The workshop however was another matter so we had to make the decision to have the new base. Bit of a b*m**r as it has eaten into my budget a bit. I may only be able to insulate the roof at this time rather than planning for the whole thing. Still there is a lot to go in close to the walls so plenty of still air which is a pretty good insulator.
Moving forward on the infrastructure stuff for the railway, I had some fun last night calculating the volumes of each of the parts in "my building system". Cement and me don't rub along too well with each other so considering casting in resin. It doesn't come out so bad and even in the larger scale is still pretty competitive with commercially available products in 16MM. I have had a scheme for slating the roofs (including running up samples) in plastic sheet for a while now but I would like to think of some way of fancy tiling. Perhaps casting my own in resin as miniatures of the real thing springs to mind. Musing on the subject, I have only to make just one, make a mould then run a load off, fettle them and make a mould for many. I know I can get more than a couple of hundred components out of a mould in resin.
My buildings would then be lighter to handle as they are quite big in 7/8ths and durable in polyurethane.
Whoever said retirement was boring?