Safari share anyone?

Me and my boyfriend will be in Arusha in 7 to 10 days from today (the 2nd July) and were wondering if anyone wants to share a safari with us, to make it cheaper? We were hoping to do a budget camping safari, but want decent transport and good guide - a 4by4 jeep not a van or anything. We were thinking 4 days ish in the serengeti and Ngorogoro. If we could find another 2 people to share with then we could get the jeep to ourselves for less money each.... If anyone is interested please email me on leila_h1@hotmail.com. Thank you!