Below is the unofficial checklist for Series 2. The ones in bold are the ones I have.

Dr. Doom (with Fantastic Four vol. 1 #247)

Dr. Doom (Doombot, Chase)

Hulk (White Shirt)

Human Torch (with Fantastic Four vol. 1 #233)

Human Torch (4 On Chest)

Namor (with Savage Sub-Mariner #67)

Thing (with Fantastic Four vol. 1 #263)

Thing (Trenchcoat)