I've aligned a couple of inboards - there are some cheat sheets out there that you can use - I ended up doing the last one by feel and it turned out pretty well. I will tell you that it took some maneuvering to move a 1,100 lb diesel engine.
Also know that the normal shaft logs are designed to have a slow drip to cool them. Tightening the packing down all the way will cause them to score the shafts and then they will really leak. You can buy dripless logs that are not too expensive, While you are in there - double up those hose clamps
My dripless shaft logs
