I can't fake forum PM, anyone with permission could check them.
This might be the best option. You would have to let a trusted member of the forum have temporary access to your account. I would trust Jawhead999 to check your PMs, or I would volunteer to do it. It is up to you if you want to do it at all, it would provide absolute proof, which all other accusers have lacked.
On a related note I saw this today:
These are the people who have the most good reports over the last year:
+-------------------------+--------------+
| User | Good reports |
+-------------------------+--------------+
...
| colires | 435 |
...
+-------------------------+--------------+
Colires has the 37th most good reports in the entire forum, over the last year. I didn't even make the list, its pretty competitive.