Gamera
BTW: I was working on the Promodeler kit and had to shove it back in the box for awhile. I'm not sure it's that big an improvement at all.
That's a bummer that you're having trouble with the PM version. Trust me, it is leaps and bounds better than the original Monogram Helldiver. The original is a fun, nostalgic build, but lacks details. The PM/Accurate Miniatures kit is absolutely gorgeous.