Almost every screw in your trailer will be a square drive. Some may look like a torx, but those are 8 point and a square drive will work.
There will be some Phillips and underneath you will find 5/16" self tapping hex head screws
Tools I like to have available;
Electric screw driver and bits. The Milwaukee 12 volt line is my tool of choice for that.
At least a 1/4" and 5/16" nut driver for the above driver.
The rest of these can all be the inexpensive variety form Home Depot - Lowes etc.
Cheap digital VOM - volt ohm meter
12 volt test light
Spare fuses
Screwdriver with replaceable bits.
Bag of 12" wire ties
Wire cutters, vise grips, adjustable wrench
2 pound maul
Non contact voltage tester, see this thread for some very good info.
//heartlandowners.org/showthread.ph...Hot-Skin?highlight=non+contact+voltage+tester
Tools to take your wheels off if needed on the road.
That is a good start. Those that are handy tend to carry more.
Wiring repair kits, water plumbing repair kits etc
And Jon is spot on with his trailer, and since you are in Ohio - he'll have the resources you don't in a pinch.