Help me finish off my Hubcap collection.

As my first Transformer ever, I have affection for Hubcap, and have started making a serious effort to go completist on him.

I have:
-G2 Hubcap
-HFTD Hubcap
-Gens Selects Hubcap
-Ocular Max Grifter.

I am looking for:
-G1 Hubcap (preferably loose, since I want to open him)
-Machine Wars Hubcap (ditto)
-Any non-Grifter 3P ones, even if they’re old and weird.