Taking them apart is no fun, but putting that collection of shelves ( around 40m of shelving , 5 racks high, and with a skeleton in the middle of the floor that might be an airframe) back into a working aircraft is fun, especially as my job was instrumentation, and all my wiring was just plastic bags over connectors and zip tied broomsticks holding it off the frame for the fitters to work. My job started after the windows were half in, as I needed 2 out to get the panel back in. At least then I had most of a floor to stand on. I broke pipes that had not been undone since the manufacturer put them in, as i wanted to paint the back of that panel, it had some nasty corrosion on it.
BTW, if you are offered a test flight in a helicopter, go for it. Perhaps not an Alouette, as there you are a good part of the test load, and the autorotation test will make any roller coaster look tame afterwards. Just remember to sign the insurance forms.....
Super Frelon was different, sitting in the door with the feet dangling outside, holding on the strap while the pilots got over their frustration at sitting at full power with zero collective for an hour doing a compass swing, with me in the middle relaying the intercom readings ( magnetic headphone is bad) then finally doing the standby compass while the tractor is playing round and round with the chopper and the cooking guy in the middle with the theodolite and compass. Interesting looking down at the sky and up at the sea, with the shore off to the one side while they were doing aerobatics in a 16 ton chopper.