That fork is a sound choice and will fit with the components you have chosen. i dont have much experience with hope trials brakes but if you want to save some money then i suggest the avid ball bearing disk brake. its great value for money and with a bit of fiddling about and setting up it will be as good, or better than, the hope. the hub is another good choice, however it is always best to have a whole new wheel built if possible. And also im not sure whether the hope has the same number of spokes as your current rim, if not you would definitely need a new wheel. if im wrong about any of this then someone please correct me p.s you will probably need a quick release skewer for your hub( unless you have one already). Ted.