Yes, I did check into the possibilities at FamilyTreeDNA, and yes, they do offer the capacity to additionally test autosomal DNA in the Family Finder program. But it does not appear to be worth the exorbitant price they are asking ($289), as the results will only have a 50/50 chance of "predicting" a relationship with a KNOWN third cousin, and has a minimal chance of recognizing a fourth cousin. That's just not good enough for me to spend even $20 on, let alone almost $300. The testing has so small a chance of "detecting a relationship" with a 5th, 6th, or 7th cousin that it seems hardly worth taking even if THEY were paying ME for the privilege.
I have already nailed down a healthy percentage of my second cousins, so I am not interested in a $300 test that won't dig any deeper than that. As a matter of fact, my second cousins have proven to be a rather uncooperative and uncommunicative group as a whole, so I have little interest in spending anything more on connections that go no further than them. I already have several known 4th cousins. If we (known 4th cousins) ALL took the test, the odds are good that there wouldn't be a single relationship "detected" among any of us, but the tester would have pocketed a few thousand dollars. No thanks. I'll stand pat on the Y-DNA test I have already taken.
Not that I wouldn't rejoice in finding another cousin of any stripe, but if the truth were acknowledged, we would admit that if you go back far enough, we are all probably "related." Considering the likes of Manson, Hitler, Genghis Khan, and Idi Amin, that's not too comforting a thought.
The best of luck to you in your own searches for what are hoped to be more recent generations of cousins, be they McKee, Cooper, or whatever.