I convinced my brother to go in on an impact and impact socket set with me (the electric kind, not hydraulic) with me. We're about to be room mates for a good while, so joint custody works out. Anyway, after letting it charge up, the impact worked fine at getting that nut off without a holder.
The puller I'd borrowed from the shop was too messed up to go on, so I pushed Cooter to the shop and we found a puller that fit and it came off pretty easily.
The idle gears were pretty snugged in there from the whole incident, so I used a pulley puller to lever them off (my room mate got another load of inherited tools from his grandpa which luckily had a selection of pulley pullers in it).
There's no way it was running with the gears like that, they had to have been switched since the bike broke down, I just don't know who/when/where/why.
So here's the damage. It's pretty messed up, not a clean snap, just bent 'til failure, so I'm scouring ebay for a replacement.
