repair?

hi everybody my name is joe i am new to streetbikes and came up on a deal that i felt i couldnt pass up and picked a 2001tl1000r w/ 8500 milles for 1500 wdythink did i get ripped off?...i am going to use it to comute on back country roads and two lane hwys mostly and was looking for any advice...

I had some issues with the bike stuttering... setting the TPS and TB's did make a difference but it was still hesitating around 3K. The next job was to have been the fuel filter mod... Unfortunately before I could get to that the chain snapped when exiting a roundabout... The damage was...

anyone got info on the best plastic repair product off the shelf? My tail piece is cracked cleanly across it, think it will repiar nicely, but want proffessional strenght it possible. Or experience of platic welding? or recommnedation of repair company?