250x Swing arm issues

I was out riding in New York this weekend. The trails were alright and i had fun, but on the last day I noticed something lose in the rear. I checked the axle nut and that was tight and had to end up tightening one of the hubs, but then saw that the whole swing arm was moving to the right just ever so slightly. I haven't taken it apart yet, but know I will need at least new bearings and seals. My dealer is usually good about getting me a good deal, but was wondering if their are any good aftermarket kits that will save some money over factory in case i get some nut job working the parts counter.