Male Marmoset

Eight year old white-tufted marmoset. Recently lost his mate. Would like him placed with another female or a least where he can see or communicate with other marmosets. Not a pet, but not mean. I enter the enclosure to feed and clean with no issues and he will take food from me. $2000 or trade for lemurs, other Ohio legal primates or exotics. Would also buy a solo female to pair him with.