The special tools meaning the cam locker and crank locker? Crank locker you can make out of a wooden dowel, just use the crank alignment hole on the side of the block, put the crank at TDC and stick the dowel in the hole, if it doesn't fit sand it down until it does, or find a different sized dowel. For the cams, you're going to want to either buy the tool, or make something that fits the same way. You could probably get away with a couple adjustable wrenches welded together, or have a machine shop make you a couple blocks, but really what it does it align the cams and keep them from rocking, money well spent.