On Fri, 1 May 2020 18:13:46 -0700 (PDT), Jay Pique
wrote:

Anyone got any tips?

No tips, but you have my sympathy. Did a 12x16 room a few years ago,
complete with 7 foot wide ceiling-height brick chimney that extended
into the attic. Care to guess about the squareness of the corners and
the evenness of the walls?