[Erik]

I think you already have the basics James, but here's my recommendations off the top of my head.
7mm suit, weight harness (not a belt), 75 to 90cm gun, 60 to 100' of good floatline, decent-sized flaot with D-rings and/or space to store stuff, stringer, dry OSS gloves, knife for killing and cleaning in-water, hot drink in a thermos on the float, water/gatorade drink on the float, any old fins, wetboots... oh and a buddy somewhere within 100 metres lol!
Erik