Worst body job ever

You paid him for 56 hours of labor...it's not enough time to do what YOU expected...It's unrealistic to expect under hood/door jams/trunk/straighten body panels and align.
I'm sure you got other estimates and they all started at around $5000.(for body)
There's probably $500 to $1000 worth of materials just in the body prep/seal work and no paint IMHO
That quarter never saw a long board so I can see/have seen that before.
I see your problem all the time guys bring their $2500-4500 paint jobs to me after the fact to get my opinion on the finished product.
Every time I ask about the before condition it was alway minimal problems in the complaining customers eyes and 9/10 after seeing the before pictures the problems were always substantial.
I feel bad for you but from what I see on a day to day basis 80% of the $2000-$4000 paint jobs that I've been asked to look at all have what your going through in common.

Sorry for your misfortune