You hate not being able to tell if you can make the distance between to islands at Fulgora? Constantly checking back and forth?
Check my simple solution for this tedious problem.
A variety of different legendary big electric pole setups, basically all you need. You can brute force it with the "All" blueprint, but keep in mind that the middle one and the other ones connect, opposite sites of outer ones won't connect if the middle one is missing.