Kingsnake Brumation in different species/subspecies

[GreenNeutron]

Is there any species/subspecies of kingsnake that doesn't require really cool temps during it's brumation period, or a species that doesnt require brumating at all for breeding? I was just curious, because most of the caresheets I've found online so far are rather generalized.
I was wondering because I was vaguely pondering a kingsnake breeding project, but I live in an apartment, so it would be pretty difficult for me to get temps down in the 50s(about where most of the caresheets were suggesting, tell me if they were wrong!) without a garage or something, or freezing myself or my other snakes. lol...