Holy cow! My idea of "Man Power" is hand splitting, which I wore myself out at this afternoon. But "HAND SAWING"
I know you're not kidding but,
YOU GOT TO BE KIDDING! I'm impressed. I used to have a nice two person job, don't remember the brand, but I gave it to one of my sisters years ago and its hanging on the wall in her den, all painted up in an outdoorsy scene.
As far as sharpening goes, I used to leave that to an old timer that lived down the road. He had a "jig" type of vise he used and some special tools to set teeth right. I would have him sharpen all my circular and straight saws for me. He's dead now. Try this reference, its looks pretty detailed with some good references at the bottom. Good luck with having your fun!
http://www.vintagesaws.com/library/primer/sharp.html