Collecting the Prince of Power

With his recent surge in popularity in Incredible Herc, I decided to go for early appearances of Hercules. Man, who thought collecting such a secondary character would be so tough! I have managed a reasonable assembly thus far: JIM Annual 1 9.0, JIM 124 9.4, Avengers 38 9.0 Green River, Sub-Mariner 29 9.6 and my latest, Champions 1 9.6 Pacific Coast. I am desperately seeking out high grade Avengers 39 to 50 but the prices are getting ridiculous!! A 9.4 Avengers 50 just sold for 400$ on eBay and I thought I had put a ridiculously high top bid at 255$. Boy was I wrong... Anyway, I'll let you know how my quest shapes up and hopefully we fans of The Prince of Power can get a competitive set listed of Herc appearances!