Hi everyone, I have a chance to buy a 47 blower that was on a 4100. The bad is it's completely torn apart. The key way that is inside the gear box for the rake shaft to chewed out. I could not see how the gear looks since the gearbox was still on the shaft, but I could slide it over some to see the shaft. I priced up all the bearing and holders that would need to be replaced which came out to around a 100 bucks. The housing is in good shape and the rakes aren't all bent up which is nice. They said I could have all of it for 500 bucks. I thought if the gear in the gearbox is ok, I could have a new keyway cut on the shaft and put it back together. They said I could have it for 500 bucks. Do you guys think it is a worthwhile investment?