Thats the best there is. you could use his and after you put it together you could add whatever else to it/build up with bondo. Whats wrong with Robos? I think it looks pretty good.
to the pepakura files they are great but missing some deails like the parts on every finger element.
some roundings and the joints for the front parts.
they files are good but for the 3d print i would like to get the closest to the part as i can get