Reverse voltage protection diode - necessary?
I would definitely not choose to 'skip it' on reverse-polarity protection. Even if you expect to be the only one to ever use it, that doesn't guarantee against accidentally hooking up a replacement power supply wrong when the first one dies in a few years.

I didn't search for schottky in particular, just high amps &amp; low volts, but I found this one for you (under 0.5V @ 10A) 3 of those with 0.01ohm >=1W series resistors should do a pretty good job of protecting your investment ;)