I have a door frame that we had a hard time figuring out due to ceiling bulk heads. The Rough Opening was supposed to be 82x32, however, after drywall we have a Rough Opening of 81 3/4" x 31 1/2". The right door frame stud has bowed inwards causing the middle to be 31 1/2", where the top and bottom are 32". We would like a 30x80" door for this bathroom, however, I will take a 28x30 if there is no other choice.

My question is do I attempt to plane the middle of the stud down with a reciprocating saw or planer to try to fit a 30x80" door? or do I just go with a 28x30"?

Or should I just order a custom door based on the RO dimensions