Go heavy and with redundency
Most of the time the inside passage is fairly benigh, BUT, it can really blow. In the summer of '91 (August 8), we were at Winter Harbor when Solander Island weather satation blew away at 103 knots. The system was so large that people in Barkley Sound and Queen Charlotte City were feeling 75 knot winds. While the intensity of this storm may have been greater than average for this time period, I've noted some fairly strong sytems in other years. People don't talk much about them because this is "summer" and the "good" season. Due to the remoteness of some of the areas and the rapid approach of systems (sometimes less than a day warning) it would be advised to asume a marina might not be available and you'd be on your own.Recommendation: Go oversize and have redundency. For the primary anchor a plow would be my recommendation. Some bays which look like good anchorages have shallow mud bottoms and fluke type anchors will drag (similar to Poulsbo, Ganges, etc.). For our H-35 our standard anchor is a 33# Delta with 45ft of 5/16 high-test and 250 ft of Samson gold braid. My shackles are made in Japan (not China) and are oversize (I don't trust shackles). For a backup anchor I have a Fortress (big), 40 ft of 5/16 high-test and 350 ft of 7/8 braid. When going north of Campbell River I use the 350 ft rode due to the depths one has to anchor in. At Shearwater the depths are in the 70 to 80 ft range so the 350 ft rode is handy. The OEM anchor rode I use for the lunch hook.Plenty of stern tie line (like Phil said, preferably line that floats so it won't get caught in your prop), mushroom anchor(s), dive gear (wet suit, gloves, booties, head, and weights) to unsnag stuff around the prop or winged keel are handy additions. I take 5 plastic 5-gal Gerry cans for diesel and one for gas (plus the outboard gas tank), and numerous one-gal water jugs.Water: If you must take on water between Comox and Ketchikan put some in a clean clear glass jar first to see if you like the looks of it.Hope you have a good time!