Besides the usual single fuse block mounted off my starter switch. I attach one on my generator off of a cut-out mounting screw. This protects the main electrical system from the headlights/horn in case they develop a short. The single fuse blocks will mount on either side of the starter switch. So you can run two single blocks off of it. Also, look on eBay I've bought "antique'y looking*" multiple fuse stand alone blocks off of it.
Bob-A
*I try and stay "period correct" when I modify my "A". If it is not possible
then the item I use. I try and make it look "period correct" or
antique'y,
as I call it.