Nice !!!
My workshop shrunk in the plans from 14 x 8,5 mtrs to 8 x 8,5 mtrs.....
Underground here means 100 mm pipes with ropes through them for all kind of wiring... We learned the hard way there is always another cable / hose to be put in later.
Well over 700 mtrs. of underground ducting (yes - I love minidiggers) we put in over the years and about 1,5 mtrs. under the ground - we have never problems getting cables somewhere - even water & CCTV in the fields... I bought a 5000 mtrs CAT5 cable reel and we use that for both computers, telephone, CCTV, alarms etc.
Pls. keep them coming !