Getting ready to build a shop- first time in many decades I have done so- perusing this forum for ideas.

My advice would be for a guy in Hawaii: Make sure its on top of a hill and as far away from a volcano as possible. Also have a separate lavatory and washroom (mudroom) so your significant other isn't nagging you about dragging work clothes into the "clean" house. Have plenty of air drops and recepticles like every 6 feet along the wall. Have the air compressor outside of the workspace so that it won't rack your brain when it's running. Put drains in the slabs so that you avoid wet floors as much as possible.
I would add an extra shipping container (20' or 40' ideally) so that you have somewhere to store all of your future project extras and spare parts. Make sure you have plenty of electrical service amperage! Then add projects and enjoy!!!
Well, the volcano idea is impractical;- as I live on it LOL. I was evacuated four times in 2018 before finally just staying at my business location for the last 2 months of the flow. Missed me by a mile though. I mean, a literal mile. Now it's really hard for the lava to hit me if it blows again- the lava made a type of dam depending on if the east rift zone pops off. right now though Mauna Loa is making noises, the big girl is dangerous for real to Hilo and Kona- but in that case, I live on Kiluea, and am safe from that one- Kiluea is probably not going to go off in my liftetime again due to the 2018 eruption- it takes 50-100 years for it to refill. The Pu'u 'O'o crater is empty down to 1800 feet! It's like a giant empty mine-shaft now over a 1/4 mile deep. Well, it was, now the sides have collapsed down to about 260 feet, just looked it up- it started erupting in 1983 and was continuous until 2018, but now it's super quiet.