I used to work for Binks in the repair department. I rebuilt hundreds and hundreds of their spray guns. Thor guns (precursor to the model 7) model 7's, 18's, 2001's, BBR's, automatic guns were the most common but nothing high end like yours. My salary was probably covered by selling fluid nozzles because nobody had the correct thin-line 19/32 wrench to properly remove them and they used pliars instead. 20 bucks each time instead of a $5 wrench...