Im assuming HPW is one of those diets posted by other members, but your diet seems solid. I wouldnt feed eggs and turkey burger everyday, but your not, so your golden.
Dont overthink these diets, a lot of people scramble thinking if the ratios arnt perfect your gliders head will explode.
Also, there are other things equally as important as calcium for a glider, although I dont think calcium is "overrated", I think there is fear mongering that goes on with it. I've seen people post diets, only to be attacked, and tell the forum to piss off, and probably didnt take any of the advise into consideration.
Variety of veggies, Variety of fruit, Yogurt, good protein source, water....what else is there.(nuts maybe)
you seem to have a good grasp on diet, dont fret to much.