I'm the mindset of Get-R-Done, I'll share a partial picture of my MVP
(minimum viable product) saw till.  I didn't measure much of anything, it's
all scrap wood.  I think the handle bar is an old mop handle saved from the
garbage man.  I needed a saw till and plane till and had nearly no time,
space, or a set up shop for anything fancy.  It's the ugliest saw till I've
ever seen, but it does work.

https://photos.app.goo.gl/iLr77EgAx4sotu1S8