Empty tank! Ideas?

[xFenrir]

I feel a Dumerils would eventually need a bigger tank than a 40 gal. I'm looking for something that can live in that tank for it's whole life. (Although I'm SO tempted to pick up a baby BCI and in a few years build another enclosure.)

Plus we're going to be picking up the snake at the show near (relatively) to us, and they really only have Balls, Cornsnakes, Carpets, and then a smaller variety of BCI's, kingsnakes and small boas. I've seen GTP's there once or twice too. But the show is relatively small-scale so the variety isn't that big, so if it's a less common snake they probably won't have it.