Its luck of the draw on color and attitude.
Biak and Aru are locals and there is a few others.
From what I have read and experienced the Biak I had bit me every chance it got. My current Aru will have his bad days but usually is very good. Once he is out he is great.
I have the pre made cage fromPCVcages its 24*20*24, i think. It has plenty of space. You can see a pic of it with my four foot male perched in it in my pics.
If you want a certain color its best to look for a more mature animal so you have and idea. This also helps to see their attitude. Aru gtp seem to have the most blue. Mine has a lot.
My humidity stays between 70 and 80. Mine had ri when i got him and i was keeping humidity at 70 but the vet recommended going to 80 while recovering and ever since then keeping it around this range has worked well.