I've also posted on the CHS list, but now I can write a more complete response now that I've had a chance to read the thread. A concern I have with a tank that size and with as much cover as it has is whether or not the gecko is finding the food.
I started out my two female CB tokay's in a fairly small rack tub setup, with simple paper towels, a bar to climb on (the tubs in the rack was originally designed for semi-arboreal or arboreal snakes with back heat). I raised them seperately, although they had been living with each other when I got them. I use a small round dish for the superworms I feed my tokays. The dish is tall enough that the superworms have a harder time crawling out of the dish and wandering around the container.
I've had my two since Jan, and only in the last 2 or three months have I ever acutally seen them eat. They eat just fine, but they've never felt secure enough without the tub being closed to eat in front of me.
Nice job on the planted tank, btw. I've been wanting to set up a natural vivivirum style setting for my girls.
I know what you mean about friendly tokays. I've worked with my two, and Right usually has no problem being picked up for a few seconds, even if it's just long enough to be transfered to a different tub so I can clean. Left is a complete spaz, and generally doesn't like being touched at all. She can be picked up, but she's likely to sit there with her mouth open the entire time. I've never had either one of them pull the "bite and won't let go", but I've been nipped here or there in the "taming" process.
I'm not at home so I can't check the rack temp at this second, but I think it's set to 89.