Febco Bonnet Wrench for 765-1

Sprinkler system blew out its bonnet in the Febco 765-1 Back flow prevention valve. So many people have these systems and it can be a real pain to remove these bonnets. They sell a wrench for this but printing one seemed like a way better option considering the cost... I also printed the bonnet itself. It leaks a little bit but it works in a pinch and I just shut off the water when its done going thru the cycle. All the local hardware stores were out of stock and to order the new part online was 40$-60$ A plumber or sprinkler specialist will charge you almost 500$ to replace this simple designed to fail piece of plastic. I got 3 quotes.