I have a 5/24 MTD that I bought for pathway duty. I inherited an identical unit in a basket that some kid took apart and never put back together after losing most of the auger parts. The 110v electric start from the basket case wound up on my blower, the engine (now pull-start) wound up on a home made compost screener.
A neighbor gave me an old tank of a Craftsman blower, early 60's at a guess. All chain drive, no belts, centrifugal clutch. Weighs roughly 1.3 Metric Tons. 7HP Tecumseh. Cleaned it up, lubed it good, popped a new carb-a-tooter on it and now it sits in my shed.