Congrats!
My advice would be to take full advantage of the semi arboreal characteristics of the Morelia group. Provide a cage that has perches and some "head room"
I started my coastal off in a 48" x 24" x 14" cage and and now moving her into a 24" tall. (shown below)
They are one of the top display snakes IMO, and you will see many more behaviors that they preform out in the wild if you give them a setup that allows for some climbing in captivity.
The parents of my coastal are 8+ and 10 feet long. I expect her to be in the same range.
Branches, and some ceiling if you want my opinion. However there are other ways to keep them. I just prefer a display setup.
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