Hi Rowland,
I'm going throug the same quest as i'm planing to build a Perkasa, from the 1/35 Tamiya kit. Take a look at this site:
http://www.scalespeed.com/perkasa_en.htm
There are good photos, and if by any meens, you jusut can't have your boat looking well, there Parkasa is a real bargain considering it's fully equiped, painted and finished.
For my self, there has been two Brave/Perkasa, sold to Greece in the late 50's, if any has informations on they're hull number and equipement or enven better, some photos, it would be great help to me.
Best wishes to all.
Averof