Many thanks for the info. I also believe that it would be cheaper to get the whole package, but when I look for a complete 750 Gixxer front-end, it's at least something like 600 euros which is approximately the same price than I paid for my B400, not sure my wife will agree...
I already had your blog in my web browser bookmarks, I'll have a look in the next weeks to see how your bike looks like with the new front-end... I can't wait to see the result ;-)