I too have been reading a lot of posts on this site before even signing up. I haven't gotten any feedback on a post that I made earlier either. It's all good though. I don't know what your budget is, but you can start at $1,000 machine from Lowes (13hp, 4gpm) and work from there. I don't even have that good of a machine and am doing business. I haven't done any wood restoration, but I've done a lot of roofs and houses. I sub for a couple of local long time established guy's here in town. Good luck in the business.
"Jon's Exterior Solutions"
Jacksonville, FL.