RibCat680 Twin Hull Rigid Inflatable

Hello, Although I have made crafty visits to boatdesign.net, this is my first post.

I have just come into the possession of an interesting, aprox 5m, twin hull rigid inflatable- with two Yamaha 40hp 2-stroke outboard motors. It seems to be something of a unique design. Doing an image search, the nearest result is a RibCat680, with no link to source. The previous owner tells me that they were, apparently, designed and produced in South Africa for government use.
Has anybody come across this boat and/or have any further information?

 

I realise that this RIB is not exactly the same as the RibCat680 and it is a tad smaller, but the design is very similar in principle.