there was a guy on the BMWMOA forums who did a total rebuild of the flat top carbs (same as you and me) and had good pics throughout the whole process. might be worth looking at if you get around to redoing the carbs. or bookmark for later. luckily mine have been seemingly working good (as far as i know), so i haven't had to dig into them yet. i'll try and find the link in a sec.
update: here it is: