The easiest way to cover a lot of water is to use a bottom bouncer with a worm harness. It very popular technique and proven to catch walleye.
Troll speed 1.2mph -1.8mph.
To keep things simple use a 2 ounce Bottom walker that will work up to 40ft of water. Walleye in the summer should be 1ft of to 40ft of water. I would concentrate my efforts around 20ft to 40ft in the summer.
What I perfer for rod and reel.
Diawa lexas 100 line counter
Fenwick Eagle casting rod 7ft medium action fast action