Am going to build my first kit, an old LT40. Been sitting in the box in a barn since the '90s.
The piano wire is a bit rusty, but that's the only flaw I see so far.
I have gotten as far as spreading out the plans.
Planning on 5S on a 700 KV GEForce motor, with a 12 to 15 inch prop.
Maybe 14 is the largest that will fit, we'll see.
A 13x10 would probably give it unlimited vertical, so I don't need to go crazy on prop size.