1. Blade balancer (it doesn't have to be the Koll, but get the Koll if you can afford it)

2. Ball link pliers

3. Regular old metric hex keys will do for now

4. If you can find a screwdriver in your tool box that fits, you can dispense with the JIS set for now (note that different brands of screwdrivers you can find at the hardware store may have different fits, so you might want to bring a screw with you to the store and get one that fits the best. Also, you can modify an old screw driver by grinding down the tip to achieve a better fits with the JIS screws.)

5. Your regular trickle charger will do for now.