Last month I bought a turretless G1 Blitzwing from an Ebay seller in Australia.
Today I got the turret, gun and sword from a US seller so my Blitzwing is complete!
It is missing the missiles, but I think the jet mode is good enough without them. A tank without a turret does look kind of silly...

I've also received a Classics Grimlock and Cliffjumper, and there should be some more goodies in the mail in the next few weeks. My wife is getting tired of all the deliveries but our kids love them!