It's a great sized shop for hand tools. Fortunately hand tools today, between traditional cutting tools (planes and chisels) and tools for knocking down sheet goods (tracksaw) are probably all you need to work with a wide range of materials. Find a way to creatively store/display the hand tools and save the space for work and assembly. For instance I don't see a workbench (MFD?) in there and that would be the first thing I'd get. I'd put it in the middle so I could walk around it accessing it from any angle. But that bench will take up a significant part of the shop space.
Alternatively, put everything on wheels and make it so you can wheel them outside to do work, and then roll back in for storage.
"the mechanic that would perfect his work must first sharpen his tools.” Confucius