Leem1994, don't give up. Garage sales and Goodwills, and even people who own their own landscaping business will usually have something for you. Especially the Landscapers. If something goes wonky on some of their equipment, a lot of times they'll just toss the old motor to the side. You're almost doing them a favor by taking their old "useless" (to them) equipment away.
I scored a Tecumseh 3hp horizontal, a B/S 2-stroke, and a 2hp 12VDC electric motor from one.... for free!
My 1st motor (in my adult pursuit of gokarts) was a an old 6B 2hp B/S on an edger for $12.... burned almost as much oil as gas, but provided at least a couple years of enjoyment before I upgraded to an old B/S 3hp.
The vertical to horizontal thing is possible, but once you get to the output shaft issues, it's just not worth it.