personally i'd recommend a GBB for your first T.

avics, when they are under 1" are very delicate - easy to loose them. i always make sure my avics are over an inch when i buy them.

personally, i don't recommend holding any T. they are very fragile and can run or leap when the mood strikes them... i can't tell you how many experienced keepers i know that have had a T die while out of it's enclosure.