There are many products on the market to strip paint off, easily found at West Marine, etc. Most work mediocre at best. I would buy some sandpaper and get some buddies over and just do it right. Do you know if you have a Barrier Coat? If you do, you don't want to sand that off unless you plan on re-applying it. Barrier coat is usually good for the life of the boat (to a certain extent). If you are barrier-less now, I highly Recommend it, as well as a co-polymer paint, if speed isn't your #1 concern and fishing is (less prep, multi-season, more time on the water).
You muskie guys leave your boats in late in the season. Barrier is a must, unless you use heated winter storage. Pulling out at the last minute and blockin' her doesn't give the hull time to "dry", if blisters are present.