Are they electric or internal combustion? About how big are they? Is this a warehouse, factory, lumber yard, a mine?
A good set of standard auto mechanics tools will do most of what you need, you should have time to figure out what else you may want to add. I do 95% of my jobs out of a toolbag with 1/4 and 1/2" drive sockets and a few other basic things. The truck is full if everything else that I use, but not every day.
If you have the basics, wrenches, sockets, screwdrivers you should be fine for most things. Adding angle wrenches and crows feet will make your life easier, but you probably won't need them every day. Same goes for big wrenches and a 3/4" drive socket set.
Toyotas are a mix of metric and SAE.