Speaking of German kraut rock, I absolutely love Ash Ra Tempel and most Popol Vuh I've heard so far. The first 5-6 Tangerine Dream albums are the best thing ever done with cosmic-sounding synthetizers.
I would also recommend my favourite album from that bunch, as I didn't see it in your lists, that is
A.R. & Machines -
Echo. An incredible trip in an ocean of fiery fumes. Klaus Schulze is involved of course :
get it from
http://rapidshare.com/files/196808914/A.R._and_the_Machines_-_1972_-_Echo.zip.html