Do ONE side at a time. Shovel & Milindh ain't kidding...everything is a tight fit in there. It
all has to go right back
exactly where it was...and it's hard enough to remember exactly how one side came apart.
I went with just (?) installing the individual chrome
switch-button covers (not the whole switch assemblies) along with the little chrome screws to hold the stock black housings etc together...just to add a few chrome "accents' up there. Yeah,and that alone was a really tedious pain in the posterior...even w/o wiring or plumbing issues...still having to get all those wires
exactly where they were,in order to close it all up again w/o pinching them.
With that in mind you might want to (as milindh said) leave the stock black switch assemblies in place...rather than having
everything chrome...or,just replace the stock black switch-button covers (not the whole switch assemblies) with chrome ones in the new chrome housings... much cheaper and no wiring modifications...just the brake bleeding etc. that's relatively simple.
One thing for absolutely sure...get the FACTORY shop manual for y
our model/year
before you start
any project you're not familiar with... and READ the sucker

that'll come in handy as long as you own the bike. You'll be glad you listened to all of us on that one.