So gave the hacksaw blade idea out. Here is how it went. Took blade out of hack saw, placed tree in vise, opened beer. 20 min later blade broke in half, continued to use half of it. 30 min in beer gone and had barely scratched the tree, ok I had some decent grooves going but I was getting bored. What ends boredom? Power tools of course. Got the jig saw out. 10 min after that had made some good progress, then it's blade broke. Ok bad execution, but the idea was a sound one. Going to by another couple of blades tomorrow to continue. While waiting put the tree into a Evaporust wrap.