Macro build

I’m about to start building a macro and I’m looking for advice or any input.

Is it worth upgrading the screen while I’m in there?

I don’t want the aluminum boxy pixel front plate, where’s another place to buy a regular plastic one?

What do you wish you knew/ had done different when building your macro?

What soldering iron is everyone using? I have a cheap-o that I’d like to upgrade for future builds.