The male at 170 is probably borderline as was said, and you said that the female is big enough (300grams+ ?). I would not worry too much about brumation if you are wanting to pair them this season (kinda late already). I'd just put them together and see what happens. Neither of my corn clutches this year came from brumated parents, and they were all first timers. One clutch was 16 hatchlings and the other was 23.