2 Things. First, Yes it can seem overwhelming at first with all the restrictions but it is your responsibility to know the rules in the area you are going to fish. Good on you for asking for help. Area 17(Nanaimo) is pretty straight forward, one chinook hatch or non 62-80cm 1 per person. Measure those on a gaff or stick and mark with tape, then when you pull the fish up to the boat you can try and get an eyeball with your measuring stick in the water before netting. Also the measurement is from the tip of the nose to the fork in the tail, not the ends of the tail. There is pretty much zero coho around so 99% chance if you catch a salmon right now it will be a chinook. Look up the Identify Your Catch- Salmon on the dfo site, take screen shots if you want quick access. Black mouth with sharp teeth and spots on the tail are the biggest identifiers, also if it starts pulling line off your reel its probably a chinook lol.
Second, The weather. The area you want to go is going to be hit with 15-25knot NW winds from Sat morning to most likely Monday or Tuesday due to the high pressure ridge building up. Im not sure what size boat you have but i would HIGHLY recommend you dont go out in anything close to that. Unfortunately there is really nowhere to hide and fish from the nw winds. If you still want to get out I would suggest launching from Ladysmith and do some gulf island cruising and maybe drop a line by Tent Island.
I run a charter out of Nanaimo (Unreel Charters), if you want any more info feel free to PM me or you can text me at 250-802-3816, I am out most days right now.
Blake