As far as I know, he is MIA. I needed some help with my KGSS (changing the gain, buzzing transformer, etc) but I got fed up with him not returning my e-mails so I sent my amp off to Mikhail to give it a look.
I tried to e-mail him again through his school e-mail address (uwaterloo) and it was rejected by the server saying it is not a valid e-mail address. His PM box is full.
At least I already got my amp from him, even though I had to send it to Mikhail to rebuild the power supply and make some changes. I hope everyone who paid zzz can contact him and get your amps. For everyone else who is thinking about building a Gilmore design, I recommend that you contact Justin or Mikhail.