GPX 600 R Headlamps

I need a new headlight, with me the light angle (height and side adjustment can no longer be adjusted). Would you like to ask if the ones from the GPZ 600 and from the GPX 750 fit? Will buy a cheap one in the next months (until August) at Ebay. Then the TÜV is due. PS: I also have to change the needle bearings on the swing (is that difficult?). Would the machine like to drive until the end of next year to get me a 1000er(R1 or similar), n until then I want 500€ together so it becomes something reasonable. gruss Klinky