I have been privileged enough to actually correspond with Wally recently about this. He has shared his pictures and updates with me.
I have to unequivocally say that this is the MOST impressive thing I have seen from an individual in regards to pinball. He actually pulled off something that I did not think anybody could or would do.
Redoing a wire harness, creating his own wire ramps, and various self made metal parts - WOW
I really enjoy watching experts restore pins that were trashed, this goes beyond even that.
Congratulations.