If you've got a fender then the hinges are already there, its what pretty much holds the windscreen on. I will admit to never having folded mine down but I think its just a case of loosening the nuts on the inside at left and right and it should fold forward
Yeah tried mine this summer with the windscreen down, got fed up after a couple of miles
However it is definitely worth taking doortops off if you can and all the hood sticks so you just have a windscreen and rollbar. Looks ace![]()