I love these GSF400's, be careful, especially when teaching the GF to ride this. When These little 4cyl get on cam, they scream. Wheelie machines for sure! If I remember, my buddies would scare the crap out of both of us, and we have ridden all our life. By the looks of it yours is UK bike, are you in Canada? I want to get one, but here in the states they are pretty hard to come by.
Anyway, looks like a sweet project, I will be watching for sure!