Stainless and JH....interesting deal! I was a little involved with a fuel cell streamliner idea in '05. The problem is that you run in the weight classes for E streamliners. Our available stacks/battery/motor packages were 120 hp each. This would only give us 240 hp through all four wheels and we could not get the design below the 1000kg limit for the slower class. The stacks are very heavy, and those were the only parts in the program (this was a hybrid fuel cell package).
Also, keeping the stacks down to about 140 degrees is very difficult because you are so close to ambient temp. You cant move much heat across a 20-30 degree difference. I was seriously considering a constant loss cooling system using liquid nitrogen.
Real tough nut to crack, and you will need to flush and pump down the exhaust side of the stacks in that salt environment. The last meeting ended in long silence, followed by a short discussion on lunch.