Free: Contests & Raffles.
I agree, if you can fit two 150s in there you should be fine. What you do with a 350" rack is another question altogether.
That will go over great driving through downtown Seattle! Lol.
I put a full body cow and three other guys in my Suzuki samurai. Luckily, we only had to go a few miles. There was guys and cow legs sticking out the back and sides!