20th Anniversary Hasbro Optimus took a shelf dive and cracked his knee. I haven't been able to repair it and need to replace it. Please PM if you've got one you'd be willing to sell.

[Edit] I could also use the ankle from the same leg: the sliding balljoint post thing that his foot attaches to.

 

Never mind. I managed to repair the broken part in the knee by piling up half a centimeter if epoxy onto the cracked part and it's holding great. Also managed to repair the ankle stalk by drilling into the two pieces and epoxying a 2mm pin inside the break. I suspect the break site is now the strongest area on that piece. The knee joint works and shows no signs of breaking again and the ankle works (pushing it in makes his shin vents open) as well. I even managed to strengthen the weak joints by putting a spacer behind the springs in the knees and using future to coat the inside of the foot balljoints so he shouldn't be doing any more dives.