A start can be what is included on public stands and add up, like combination wrenches, maybe brake wrenches.
Eight bicycle tools, including tyre levers, adjustable spanner, multi-tool and torx screwdriver, tethered by aircraft cable
Phillips & standard screwdrivers, Steel core tire levers (2), Headset/pedal wrench, 8/10mm cone wrench, 9/11mm cone wrench, Torx T-25, Hex key set
Phillips & standard screwdrivers, Steel core tire levers (2), Headset/pedal wrench, 8/10mm cone wrench, 9/11mm cone wrench, Torx T-25, Hex key set (same as above???)
Hex key set, Torx T-25, Steel core tire levers (2), Adjustable wrench, 13/15mm cone wrench, Phillips & standard screwdrivers
So there is a pattern . . .
The balance is always between convenience and accountability. Tool rolls are quick, but can take longer to inventory.
Though more susceptible to being scattered on the floor, personally, I'd get someone with mid level wood working skills and frame out a piece of peg board so it will be self-supporting. Full 2 X 4 on the bottom, ripped 2 X 4 for the sides and top. Can be done with a Skill saw and a rip guide and screwed together. Then apply tool shadows, I've used photocopy cut-outs applied with polyurethane and then a coat on top. They have lasted almost six years now. Color code the board and the tools with vinyl tape. Easy to tell with a glance if a tool is missing, or what board a "borrowed" one goes back to.