Ok, so here is the direct message I got from my friend after the very visit today
"Anywhoo, hes now 5 grams, so he gained some weight!But... his weight and calcium levels are low for his age His hand is most likely caused due to him lacking so much calcium as a baby, its not broken...its hurt and the lack of calcium sure didnt help whatever caused it, before or during shipping. MDB is something that could very likely happen if the problem was not addressed/ persists. I was told to continue with what im doing if hes eating, make sure he gets calcium, if it persists I may need liquid calcium etc. It also could be parasite related but seeing as he as hes gaining weight its doubtful to be that. It was more than likely weak bones, lack of calcium growing up."
Needless to say, he is gonna keep the little guy.