We are working on a permanent storage for both coal and ash. If we can get them, we have been given some big cement blocks to build the walls out of, and once complete Brendan wants to pour a floor. Getting the blocks involves several donations. Donation of the blocks and 2 cranes (for loading and unloading), and donation of use of a truck to haul them, we just pay fuel.
Then, after the roundhouse is complete, there is talk of having a somewhat period coal pocket just north of the roundhouse on the run through track. This pocket can be filled with a loader. A bucket mounted to a gantry would then be used to load the locomotive.
Lots and lots of thought has gone into trying to plan everything out so it fits. Baby steps is what we take..