What a wonderful thing to look forward to. Your birds will be so happy. Good for you and them Stephanie!

Yes they will be comfortable. And my future addition will be as well.

Scrubbing is an odious job.
I read in a few places that if you leave the mesh out, nature will do the job.
I have two rolls in the garden right now, the nature elements will do the job (hopefully).
EDIT this method takes time (weeks if not months)

Yes, I heard that on TC. But, as impatient as I am, I will probably just grin and bare it and put in the extra elbow grease myself. However, if my aviary will be a full wall long, I may have to enlist a few helpers to speed the process along. The wood framing is probably the easiest part. Then the branches and perches. Dreading the mesh though.

I've heard that leaving the mesh outside for three months will get the job done. If you can plan that far ahead you won't need to scrub.

Leave it out where I live
it will all go rusty!