Honestly, I think that he would be fine. Most of my males kept eating most of the way through breeding season, so they put on some weight. I did feed them smaller meals though. My males were between 700 and 1000 grams last breeding season, and all did fine. If I were you, I would wait until this winters breeding season before putting them together. Most females start producing follicles during this season. If you put them together now, and she isn't producing any follicles, then she won't become gravid. I would wait until around November to introduce your male.
Good luck.