Honestly, if I were you, before I moved in my model stuff and the room was empty(if not too late), I would just bite the bullet and have an electrician come in and run some new/addtional juice to the room. I am in a new house (less than 2 years old), and my area has one outlet on each of three walls, and I wish I dad more.
At my bench, I have at least 5 items LED Ceiling shop light/Loop LED magnifier light/Laptop/Tablet/Dremel
On my outside wall, I have 5 items, Compressor/Spraybooth/LED spotlight/non LED spotlight/dehydrator (When I paint, all of these items are typically on at the same time)
Third wall, occasionally used for photo-booth lights and occasional vacuum, but really a bit too far to plug much into for the hobby, but I understand it is on the same circuit as the other two, so not much point in running an extension cord from there to the other part of the room