a standard Gill jacket with a zip out liner, fleece jacket, 'hoodie' type sweatshirt, t shirt for the upper - layer as needed.
swim trunks, sweat pants, blue jeans, rain pants for the bottom.
That pretty much covers every thing but shoes, hats and gloves.
I don't think you really need 'marine' stuff, but if you think you do break out your savings account.
And a full enclosure with screen inserts, a 1 lb propane bulb with a 1500 btu heater on it.
Lessons learned are opportunities earned.