To be deserving of the title "rescued" or even "kinda rescued", I think the animal needs to be in a pretty dire situation. That Pinstripe looks like he has a decent amount of body fat, even if he isn't 800 grams at his age.

Personally, I think most animals in this hobby are probably overfed a little bit, not that that's necessarily bad. Just saying, I believe you are basing average weight ideals off of animals that are being fed very generously (maybe overfed a touch).

Anyway, beautiful animal!