Good points Dave, those are the little but important points people don't. Often think of until its time to button things up.
I also think its a failing on many known aftermarket manufacturers that don't point out or give extra instructions of probable mods needed ( eg I've looked at a few Ford & GM Aircleaner bases & its surprising the bumps, dips , pips & flats etc built in for STK Carbs )
Goodluck . Trev.