
Sounds like JubJub was a good influence. Good for you, trying to give these 2 snakes a better life.

Did they both come from the same home?
I'm a little confused by your description of what's going on with the cage tops...be sure they cannot get out, you got lucky this time. Snakes are way better at
"hide & seek" than we are. Also, be sure there is nothing flammable (or melt-able) near or touching the lights...they get hot.
As far as them refusing meals so far: don't offer more than once a week, it makes it more likely they'll stress & refuse. (sounds like a few missed meals won't
hurt Kitten one bit, lol) Were they taking live or (hopefully) frozen-thawed or fresh killed rodents previously? For best results, offer the same for the first few
meals until they've settled in...(& it makes a big difference to many snakes whether rats or mice too- they have a totally different smell & presumably, taste).
Many BP-keepers have success using a blow dryer (hair dryer) to heat up the nose of the f/t rodent so they think it's alive & they can target easier (they use
their heat-sensing pits when catching food, as you likely know already). Feeding tongs are very handy too. BTW, it's often better to not even offer food for the
first week or two with new snakes...it takes time for them to settle in & want to eat, so don't worry about them not eating yet. Re-homing is scary for them.