We have a freezer out in the garage I would be able to keep the f/t mice/rats in. Everything in there is well-sealed, so my mom wouldn't even have to worry about bacteria spreading.
Even if I couldn't keep them there, I would just have to wait a little longer to save up enough for a mini freezer.
It's gonna have to be a hard no on the gecko, I can't bring myself to be near/feed insects. Any reptile I get will have to either have a meat (no insect) diet or be vegetarian.
Surprisingly enough, I had pet mice for a short period (They were Petco mice, ended up dying before the guarantee was even over, the employee that looked at them was even puzzled as to why they died, as they were all females with a huge, clean cage with a good diet, in a warm place in the house without drafts.) but I have no problem preparing and feeding dead rodents to a snake. It's just insects that creep me out. Big eyes, spindly legs, weird pincers, small things that move really fast, et cetera.
I don't keep crested geckos, but I think they eat some mixture called Pangea or Repashi (spellIng?), but I have no idea whether they need to have some live insect ocassionally.