Times are tough and horsepower's expensive (not to mention the price of a brand new Dog). So I can defintely relate to what this guy's trying to do. He just wants to ride on a nice looking bike. Went thru the same thing myself when I was a kid and built my first chopper. (Had to opt for an old Triumph powerplant instead of a new Hog because I couldn't afford what Harley wanted for a new shovel.) By the same token, however, I will say this...I've had countess Harley motors and several S&S, and my experience has been that the S&S motors, although sometimes a bit more fickle than Harleys, they are much more reliable.
Good luck, bro! Get your offset figured out, and you should be fine. Enjoy the summer!!!