Hi all,
You must now play the waiting game for parts, will be worth it in the end I'm sure. Just looking at your rounded nut and it doesn't look like a nut at all, either way the only way I can think of getting it off is by drilling a hole straight through as low to the bottom as possible that will take a pice of rod.
and give it a hit with a solid hammer to loosen. I would try that first.
Another way I thought of is cut or grind away the cup exposing the rounded nut. Then a big pipe wrench. I presume the cup from a125 or 160 will fit as a replacement.
