There's a guy who posts lots of repair stuff on other forums called Dan Chambers who seems to really know his stuff and is considered to be a bit of a bike fixing guru...... You could try getting in contact with him by putting a wanted request and see if he replies....... gutted for you though about the crack....... sure you can get it repaired fairly reasonably and look good enough when done if it's done correctly and dress the area back correctly and polish it all back up.
He is a member on here.