ROM Hack N64: How 2 patch F-Zero X Climax to PAL50?

[ciaomao]

Can anyone give me advice? I want to patch my PAL F-ZERO X to Climax, which I dumped before with my Z64.
Unfortunately, the patch is apparently compatible only for the US and JAP game.
I need PAL50, otherwise it comes through the scaler to color problems.
As the there are shops selling the physical PAL game, there should be a way...I guess.
I already tried to PALadin the patched JAP rom, but it seems not work.

THANKS