Landshark,
The funny part about galvanizing is that my 300 pound railing use less material. I really wanted to have them hot dip galvanized and wish I did now. I have been looking at POR-15 which I used on my 73 Landcruiser chassis but it needs to be top coated and they don't make a top coat in a clear.
Thanks,
RIck
Cholla Bay