Hey guys!
Thanks a lot for your replies
That piece actually goes to the handlebar's left-side box, it's a support for the choke lever. I was trying to fit it on the handlebar's right-side box (here the "start" is located), silly mistake from my side!
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About the brake hose I could make a new one at an hydraulics workshop.
But I'm still missing longer throttle & clutch cables, this is becoming a real pain cos I'm stuck in Santiago, Chile in the middle of my world tour.
If I could figure out a model that fits the Himalayan from some other famous brand, it'd be great.
I'll keep searching, any suggestions will be welcome!