Wow, thanks for all the responses y'all! They're really quite helpful.
It looks like ordering some of the 16-20g links would be the best option. Unfortunately, when I tried to put in an order for some baby quail and the said links, I was just shy of the $75 threshold required for shipping, so that plan's off for now. In the event I manage to get ahold of any links in the future I'll be sure to share my experience here.
A few notes on my feeding plans for Pandora, if anyone's interested: for now, the plan is to offer one hopper mouse every 10-14 days, with a light dusting of the Arcadia EarthPro-A supplement every third meal or so if she's not averse. I'm not planning on feeding her anything more that 15% of her body weight until I can get her under a more intense heat source like a deep heat projector, at which point I may offer her larger meals up to 20% of her body weight. (I have a suspicion that more penetrating heat like IR-A and IR-B are better for snake digestion than the IR-C produced by things like heat mats, CHEs, and RHPs, so I plan on testing that out in a few months). There are already some 12-18g small mice in the freezer for her for when it's time to bump up -- at the glacial rate Kuzco is growing, she'll be needing them before he does, so they're all hers. Feedings will probably be a little spaced out more at that point.