About the Luchuirp thing ..
I think the worldspell of the Luchuirp is quite essential for them early game and i wouldn't want to play a game without it
Used asap you not only get an engineer for free which speeds up your early eco quite nicely you also get a great engineer very fast which can be settled what makes life much easier, one of the major points i like Luchuirp so much at all, or to research construction which replaces the great engineer instantly and gives you very early barnaxus.
Imo we should think of something so you can get that free engineer.