Actually, I don't measure exactly how much oh each ingredient I use even though I should. I got the kokum butter from FNWL and it comes in blocks, just like the shea butter. I usually break off a pinky's length of kokum butter to use, about 2 inches tall. As far as irish moss, I found out about this herb on one of this thread:
http://www.longhaircareforum.com/showthread.php?t=117790
Follow her exact instructions on this. I didn't have the actual whole irish moss. I have irish moss powder. I used three tablespoons of irish moss with 3 1/2 cups of water. I took it off the stove and let it set for 20 minutes. It should become thicker. I poured this in the blender with the kokum butter. Let it blend until it gets thick enough for you, mine looked like a shake. Then I added about two tablespoons of jamaican black castor oil, and if I have it, I would mix in two tablespoons of olive oil too. I use half of the mix and store the other half. I slather it over my hair real good and leave it on for at least an two hours. I've never tried leaving it on all night though. The longest I've left it on was 6 hours and my hair came out lovely and luxurious!
HTH