I guess a modified version of the postbit to only show the username and stats and not the post or other junk around it would work, which could be done in the control panel.

Then you'd just need another page to somehow pull up the entire thread on one page instead of still splitting it into 30 per page or whatever you set your default as, which I'd guess would need a seperate PHP page/hack to ignore the page limit, since I can't see where that would be done form the control panel so assume it's in the PHP instead. Putting a &perpage=1000 in the URL seems to not work for me