Never!!! Got to start somewhere. Wish I had pictures of what I started with lol.
Judging by the foliage or lack there of, I'd say this poor tree has been inside for a long time. Once it is happy and healthy it will have leaves growing on top of leaves and will be so thick you won't be able to see any branches. It will send long shoots of growth out everywhere.
I'd start giving it some good lighting if you can.
If you want a cheap easy enclosure check Craig's list for used fish tanks. Something wide and tall enough to house this guy. Maybe a 20-30 gallon tank. You can even stand the tank up on its end so the top (opening) is on the left or right side. Put the tree in it and seal up the opening with cling wrap. A cheap easy light you could buy is a work light from a hardware store which looks like this brooding light.
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Just use a daylight or full spectrum cfl bulb from lowes or Home Depot with the equivilant wattage of 100 watts.
Watch for mold though. I don't have issues in my enclosure but some do. I don't know why. I know the humidity inside mine is close to if not 100%.
If you see signs of mold open up the plastic a little to let some of the humidity out.
Ryan and I both have have done a lot of experimenting with enclosures. If you have questions don't be afraid to ask. Someone should be able to help.