Zubba has a lot of good points, though I story pole the whole house. My first comment is “Why not use Hardy Plank”?
Geco Gauge will not keep you straight, but will aid you in hanging the siding. And I emphasize on the “Hanging”part!
I cannot speak enough about the flashing and urethane caulking enough.
I used LP back in the 80’s and early 90’s. They had an issue, so has “James Hardy” after that. I am absolutely NOT A BELIEVER IN “STEEL, ALUMINUM OR VINYL” sidings!!! They are by design to allow water to get behind the exterior surface. Then after you find out how rotten your wall (and studs are with mold and decayed structural issues) then you have to pay for the head in the sand effect. “Can’t see it must not be happening”!
Sorry for the soap box rant. This is just 45 years of been there and I give a poop attitude.