Original regulator

[Bryanj]

Thats the one or just join the us forum and send him a pm

[deltarider]

Personally I wouldn't bother and have the three fuses floating. I had to add two fuses: one for the horns and one for an auxilary wire. Just cut the wires and insert the fuses. The wires are short and stiff enough not to wander about.

[BigAl (Alan)]

You could also try Vehicle Wiring Products in the UK for a 4-way blade fuse box (Ref: FBB4T)
I used to supply them for RD250/400's a number of years ago.