I think the tail and front fairing from any year m2 should fit but i'm not 100% sure on the tail seems like they had a short one and a long one. The tank from any fuel injected tube frame Buell up until they stoped making them, there are 2 types S1 bikes had smaller tanks M2 & S3's had 5.5 gallons (Manta tanks). This is all just off the top of my head.