Hehe, ya din't know what you were in for, did ya LOL?
The most extensive work that I've done on any of my Zaps is a few PC board swaps on my original series versions (swapping out bad PC boards, or older v1 PC boards). Gotta say that is the biggest pain in the butt that I've ever seen, what with the tiny hair-sized steering wires and such.
I'm sure that the SEs would be even more difficult (due to having a lot more components), I've had a few apart, and wouldn't wanna even think of trying to swap the components out LOL!
My hat's off to ya! -