Some tools can get you up and going to avoid delays. What would you add?
Brass hose ends.
Crimp banding tool to put on hose ends.
American & metric T-handled allen wrenches in sets.
3/4" socket set
Nico Press cabling tool
55 gal. barrel of Hyd. fluid
Crimping tool for 4/0 cable ends and smaller
Hand tools in sets, when you take a phillips, you take the whole set so it comes back together. The same for socket sets and wrenches.