And I notice you are working over the sink.
So If you do lose a spring or two, you will get some plumbing experience too!
I am still waiting for my trigger spring to come back down to earth.
I would order one or two of each spring while you are ordering, unless your fingers are much more nimble than mine, they are cheap compared to shipping cost, and time lost waiting for them.
Notice that we are all mentioning springs going astray, it is not that we think you will lose them, it is that most of us have, a time or three.
Mostly remember what BDG mentioned, you will feel great when you get it back together and it ticks like a clock!