Best option then - Dirge and Thrust - these two are more recent so they would more still flooding the markets of specialty toy shops - local or online and a few odd K-marts restocking so you dont have to pay over price cost. Even on ebay these should cost cheaply since they're more recent. All the rest of the seekers never mind them coz they're pricy as and harder to locate now.
Wanted AM partner Vanguard, Myclones Dirge, G1 Victory Leo, e-hobby Dark scream ( the black version), e-hobby Magnificus
Parts- AM partner Basher-side guns, G1 Actionmaster Elite Windmill's blades[I][B]