Hip Keet- Ok so... heres the down fall of that cage... the front door. They're referred to as guillotine doors.

I would go to your local petstore and have a look around. Sometimes there are real finds there and they're on sale. My cage is a pretty large clean life (18x18x32... the absolute minimum size for 2 keets) and it was only 30 bucks...
Other then that you sound very organized and like you have a good head on your shoulders
i spent 70 initially on cage, perches, toys... and millet. and then 40 on my first keet (she was hand fed and socialized) and another 15 on a five pound bag of the food her breeder fed her (its very important to start feeding them the food they've been fed forever and then slowly change them to what you want them to eat, otherwise in a brand new place with brand new people and food they might starve themselves) and then another 15 on Darcy (on sale at Petco) and I've easily spent another 150-200 dollars on food, toys, vet visits, wing clippings, cuttle bones, mineral blocks, perches, travel cages, and... misc for them in the past 10 months
Spartan- So I didnt read all of your posts in detail. I gather the bird is feeling ill. TAKE THE MITE PROTECTOR OFF HER CAGE!! IT CAN KILL HER!! if someone else already said this... i apologize but GET RID OF IT... and get her a bigger cage and more diverse perches, rop and natural wood are good.