Just worm them up(don’t feed them) for two weeks and you should be good. I have some males that go off feed for 2 to 3 months sometimes so a few extra weeks shouldn't be a problem if they are healthy. Then cool if you like. As fair as cooling them 60 to 68f is fine. I'd say I've seen better results when I don’t cool them(double clutch better and keep weight on). I've had years when I've lost a few in brumation not knowing exactly why…assuming my temp dropped a little too much. I know a few old-timers that have Hondurans which they never really cool (just reduce light) and they have gotten good eggs laid in December and January. 90% of my females bred this year and I didn't cool them.
Craig