Cork bark is easy to find, its available online and at most nurseries. If you can make it to a show you can see the peices before you buy them.
I can't say if
all gesneriads are safe but most will make a nice addition to the viv. Its a pretty large family of plants so there are alot of options. Anything too fragile will probably be ruined by the anole so look for large dense foliage, this will provide good cover as well.
You can find most of the stuff through a google search. Any site that sells vivarium plants will have most of the other stuff (driftwood, cork, aliflor, substrate).
Black Jungle has a nice selection and alot of accesories. You can check at Deven at
Terra 5 Designs, alot of his stuff isn't listed but he can get ahold of anything from plants to animals and is very helpful.
Cloud Jungle Epiphytes also has a good selection.