Yes to all of the above.
So the pins aren't staked in like you'd see on a 1911, they're almost press fit its machined so tight.
The sear cage contains 1 or 2 small springs depending on the model, which is just a sub-assembly of the ignition system.
Trying to fit a Cajun sear, reset and safety lever requires complete disassembly, fitting, re-assembly, then function to see where it clashes, then a complete disassembly to make a few swipes on the safety lever, the sear and another critical point which the name for that escapes me, because I'm in potato mode until about 8 a.m..
Pin vise, frame vise, dykem blue, stones, tiny fingers with 6 knuckles in each digit, 2 elbows in each arm and telekinesis are all that required at a minimum to get it the first try.
If you don't have at least the stones, vise and dykem blue, you're looking at a 2 day project, because you have to keep walking away, watching vids and reading walk-throughs, and day drink to the point where you start to question all the horrible life decisions you've made that led you to that exact point in time.
Or at least that was my experience with my 97B. My Shadow Target 2 came ready to rip right out of the box.
I see theres now a tutorial list on the Cajun site, which wasn't there when I did mine. I wish it was, but I managed to find a ton of info and step-by-step at the Brian Enos forums.
Heres a vid of one-
cajungunworks.com