Larry Jaques wrote:

If you mud down an extra foot, it will still show up to everyone who
looks at it via shadow lines and it will look unprofessional.

Everything I said there goes. You will indubitably regret that choice,
but it's your choice.shrug

I'm not sure. I'll post some photos soon and we can both judge. What
the room is really lacking is a cabinet saw and a drill press. : )

Regards,
Bill