For that much equipment you need to try and get a Port Supply account or if
they refuse, there are other vendors who would like to make 10% mark up on
your over all purchases.

I have (had) a wholesale account with Boat America (wholesale branch of Boat
US.) I got into a Pi$$ing contest with Port Supply so ended up taking my
business to Fisheries Supply in Seattle.. Great place and people.. At one
time I was spending $15,000 a year there, both for myself and for dock
mates. To make things a little more legit, I got a small business license
(cost $25).

I think Port Supply wants you to spend about $15,000 a year but that can be
negotiated.

Steve
s/v Good Intentions