I'm not multiple anything, heaven forbid! But I do have a good featherweight I don't like sewing on...but would certainly try it as a hand crank... I'll have to go get it and set it on my lap for an hour
See how heavy 13 pounds can get.
The gearing might be a problem?
A little research shows this would be 1 stitch per turn rather than the 3 stitches per turn on a chain stitcher? It's all about speed
And weight! The chain stitchers are quite light and of course use spooled thread.