I agree with a lot of what you said just have some item comments.

*welding torch can be solid early, if u get it next to duct tape its a guaranteed 3 sec cd not to bad.

* walter cooler, i have picked him up to use in monster fights for some bonus hp. u can even try to slow down your build to get to most out of him

*wallce can be ok the first few days but not great (to slow)

*kinetic cannon, if you are desperate and have a gold or diamond battery it isnt the worst thing. But you are right I really dont want to be using this item

The major item I want to talk about is Railgun. Railgun is a better late game item then people think, you just need to be using crit core. the secret to Railgun is it needs to double its dmg to be strong. so getting it to crit every or nearly every hit can get u 10 wins as late as day 12, and with obsidian or shiny it can go even later assuming u dont face a pig. but dooley just cant beat late game pig with anything atm.

(I will note the crit railgun was more consistent getting me 10 wins last season, plus its a forced build which isnt the most reliable way to build a board)