Hey, Sheila. I need a new house, too
What I see here is a tradeoff between light and warmth. In that tradeoff, I would choose light (#5) because low 60's isn't that bad. Except for violaceas, most phals, and especially hybrids can handle the lower 60's at night (and it is getting warmer)
What they can't handle for more than a month or so is *low light*. So I would definitely rule out #s 1, 2 and 6.
IMO, give them the best light you have. Phals bloom for so long-- from now could bloom well into June or July. Way too long for them to be in dim light.
Caution: this is what I would do. Whatever you you choose, hope they thrive there.