Nor me, but later in the week, perhaps - by which time some of the unknowns in your list above may be filled-in.
It would be particularly useful to have an answer to "device protecting SWA to shed not known (type, rating)" (i.e. the device at the house end) and also to know what sort of activities are to be carried out in the outhouse/shed - IOW what is the electricity supply actually required /for/?