The right way to clean an AD frame?

[ryans69chevy]

Wondering how far you guys have gone when cleaning the frame of an AD? Have a '49 and preparing to clean it, but wondering if all the brackets that hold the running boards on and the battery tray and the other misc brackets on the frame are worth taking off and cleaning behind them? This will mean cutting all the pop rivets. I'm willing to do this, but does it need to be done? Or should it be done? If I do take all these brackets off what is the best method of putting them back on? Rivets or bolts?

If I go hardcore on this such as removing every piece on the frame is anything gonna flex? Or is this normal to disassemble every piece of the frame when doing a frame off resto?

Thanks so much!