Frustrated

So you would think with EIGHT seats in my car I could fit 4 car seats.. I've tried every configuration and this is the best I can come up with. Not ideal! I have a FF Britax convertible, RF Britax convertible, and maxi cosi max 30 in the middle and a Britax pinnacle booster in back. The third row middle has an anchor (other two have nothing) and middle row all three have latch. I could FF my 16 month old which would make it a lot easier to get her in and out. But I'd rather not. Any suggestions???? Anyone have recommendations for an SUV (not minivan) with room for 4 car seats? This is an expedition.