Richard is one of the true experts on this forum. As best I know, he's rebuilt 4 of those brands of motors in the year and a half that I've known him. I dont know if he's done a Sachs during that time.
What he's done for me has been mostly stock, and this list of parts points toward performance. New parts are pretty much controlled by the vendors, so if you can work out an arrangement or purchase during a sale, all those prices can be figured out by filling up the basket at each vendor's website.
Are you suffering from sticker shock or wondering what you should charge for labor?
This guy misses nothing on a rebuild and almost always goes above and beyond. If you are like me and don't rebuild your own motors, his rebuilds are fantastic.