I currently don't have the ability to post pics to the web, I'll see if someone has a camera I can borrow.
I basicly built it around 3 axle assemblies, I put 3 fixtures with a piece of round stock sticking out both sides for the plates to fall/ hinge from. I left the axles a little longer on the outside ends to hinge the reset lever from. I used linkage similar to the one one Mike Gibsons web site: You can find his site from a search using mgm steel targets. I put a piece of 8" x 3/8 8 feet long at a 45 degree angle in the front of it to deflect low hits, It works much better than I ever expected it to. Total costs for the metal, hardware, oxygen, accetalyene, welding rods everything was less than 350.00. Not including electricity for welding or my time, I spent about 35 hours in the building of it.
Its a real strait forward and simple design, I ended up using more metal than necessary because I built it so I could unbolt it into pieces so I could move it and transport it if needed.
Any more info or questions I can answer please ask here or email me at joeynospam308w@yahoo.com minus the no spam: Joey S aka 308