Tank removal is easy. Remove the bolt under the seat, lift the rear of the tank up (if I remember, you have to remove the cross member that the gas tank was bolted to...) and slide the tank back towards the rear of the bike - and its off. Gas line is an easy quick-disconnect... Sometimes, when reinstalling the tank, those rubber mounts fall off - I just glued mine back to the frame to prevent that from happening..
Good luck bro!