For what it's worth, I added the Workcycles front rack to my Retrovelo. I love it, but be aware that it does put the weight up high. I notice a huge difference carrying loads on it vs my Brompton bag, which is also frame-mounted, but lower. I prefer carrying heavier loads in panniers on the rear of the bike.

I'm planning to add a BF to my stable, and get rid of this abominable Raleigh SuperCourse mixte that I just can't turn into a pleasant bicycle.