I have been bussy reading a lot of posts in this section of the forum already, but I couldn't really find an answer for my problem. I just got a Koga Miyata Gent's Touring (1978) from my dad (he bought it new back then) and I am slowly taking it a part for cleaning, polishing and so on. I have been working my way from the front to the back, but I am kind of stuck.
Click the pictures for a larger version.
This is how the bike is standing in my room at the moment:
I want to remove the crankset, chainrings, chain, rear wheel, gear shifters, derailleurs, basicly everything that is still attached to the frame to clean everything.
What is my working order? I must say I am not the bicycle expert, so I don't know if it will be very problematic if I remove the derailleurs... Is it? If not, my guess was to remove the gear shifters, the front derailleur, crankset with chainrings. Then take out the rearwheel, remove the rear derailleur. Clean it all and put it back in reverse order...
Just some more pictures of the set-up to give you guys an idea about the complexity (click for bigger)...
Maybe this is a really basic question, but I don't want to screw things up. Mainly because this bike is now somewhat like a heritage and because I don't have spareparts

. Thanks in advance!