The answer to very high light bulbs is a gismo that goes on to a broom stick. It was a springy rubber end that grips the bulb, and you (yes even someone your size :) can reach the highest bulb. An American outfit shows one Here
I have been doing much plotting on my "Build a Darkroom" project. Having a space that is 9ft, 7 inches before I install drywall means that I can't just prop a standard Kitchen Style counter up on sawhorses, and I will have to do some real plotting in the Kitchen Department of IKEA or Home Depot before I visit Laurysen Kitchens on Carp Road.