Glen,
Does code or restrictive covenant allow for a shed to be attached to the side so you can put dust collection and Air compressor in that? That saves a lot of space. I would have a hanging heater and maybe skylights as to not take anymore wall or floor space….that way you can move the equipment out you are using and put the things back you not.

I have a three and a half stall garage that all my stuff is on wheels and stored in the third stall for parking vehicles in the other space. I pull the cars out and if I am turning, I have a turning set up…if I am doing flat work, likewise I have a set up for it. You learn to be creative. Is it ideal…no….but it’s cheaper than a divorce and easier than moving!!!

What A1Jim says has a lot of merit too…..if you can put up 14’ walls that is a possible short second story storage at least in part of it. Find a way to cheat the system!!!
Mike

Mike