You're in luck (again!) Ryan. I've changed the shock on mine twice so I've got quite a bit of useless information on suspension spec.
http://www.ukmonster.co.uk/monster/s...ad.php?t=56541
The stock Sachs shock is 59.5mm long with a progressive spring 165mm long (uncompressed). Stock preload is 15mm and maximum rear wheel travel is 148mm.
Hope that helps. (What are you planning??)