I have done something similar but using a Giant hybrid frame, looks like the same forks as yours.
Built with stuff I have around which is why it has Hope brakes, bit of overkill which will be replaced with bb7's at some stage.
I wanted a bike for the winter when most off road around here is unrideable, I have had road bikes but could never gel, this I very much enjoy riding and it does have some off road ability, may even put knobblies on for the summer.