Looking for Kenya & Tanzania Safari Companion around 12/3-12/18

My husband and I (in our early 30's) are looking for Kenya-Tanzania safari companions to bring down the costs. We are hoping to do a 10 to 14 day safari between the dates of 12/3-12/18. We checked with Primetime (our friends did Kenya/Tanzania safari with them last year and recommended them) and this is the itinerary they suggested, but we are flexible:

14 DAYS MASAI MARA/NAIVASHA//NAKURU/SAMBURU MT KENYA AMBOSELI LAKE MANYARA
SERENGETI NGORONGORO ZANZIBAR

Alternatively, we are thinking of doing a shorter safari in Kenya then flying up to Rwanda for the gorilla safari, so we'd interested in splitting a shorter safari in Kenya/Tanzania as well.

We will be in Nairobi on 11/30, staying with friends. Please email us at ghoney77@hotmail.com (please put "SAFARI" on the subject line so I know it's not junk!) if you are interested.

Thanks!