Hi, we went to MK last Friday. We got there after 7. We walked on to Pirates, then did Tiki Room (only had to wait for the show to start). Then we split up, DS and I headed over to Space Mountain. The sign said it was a 90 minute wait, but the castmember said it was really about 45. It was already 8:30 so we ran over and did Buzz which had a 25 minute wait posted, but it was closer to 15. Then we had time to get back to Space Mountain before closing and only waited about 5 minutes. We were done with it by 9:05 and still caught the end of Wishes. DH and DD went to Aladdin's Flying Carpets, Jungle Cruise and Hauned Mansion in that same time frame after the split. Little or no wait for any of the 3 rides.
Hope this helps.