RE: Kit building essentials
Looks like Charlie P covered the bulk of them. Of course he did omit Medium CA which I use all the time. Glad he included Loctite - essential. But he left out JB Weld if you need metal glue.
I know the folks who sheet foam core wings use a variety of glues and some who are allergic to ordinary CA use special odorless CA's. And don't forget CA debonder!
And someone mentioned Ambroid. I keep a tube around just because it smells good and reminds me of when I was 12 years old. 50 years ago that's all we had (except for Testors plastic glue).
OK, now we're all glue gurus!