i have made several round bale forks. a rear blade. a carry all. a goose neck trailer mover. all 3 point hookup. i used some square tubing for the frame. just make a T. turn it upside down and you have a 3 point frame. weld a bracket for the top bar and a couple brackets for the pins put some braces on it and you are ready to put whatever you want to build on it. if you can build the tool then you can also build the frame.