Yeah it is orange, the problem is that the original release only had one tone to it and no contrast. If only the SDCC wasn't so harsh with the orange it would look more in line with the rest.
It seems the re release of the v1 Goku seems to have a better paint job? I think that will go well with the rest of the gang?
Didn't know bout the inconsistency of the paint job of SDCC Goku. But mine looks pretty ok with the rest of the gang actually, since Vegeta's skin tone is kinda orange compared to trunks or SDCC gohan.