Hi Ross,
One of the guys in Melbourne should be able to help you with the parts, but I can at least add some archived material you might find interesting. I'm afraid the attached pix are the biggest I have of the old EPX Sand Skimmer.
Regards,
Rob

Here's the relevant guff off the old UK site:
Engineered like no other bicycle the obvious choice for EP-X is the Rohloff 14 speed hub. Three years in development, the completely sealed hub, provides silky smooth transmission for the responsive SL carbon frame.
The Speedster is the sleek stylish mode of transport.
The EP-X Series is a major leap forward in 'no compromise' bicycle design. The frame was created by our team of industrial designers and cycling enthusiasts working to EP Manufacturing’s high standards. Their goal...'to honour EP-X's quest for continuous improvement, by fusing craftsmanship and attention to detail with the latest technology and materials. These new bicycles are based upon a refusal to compromise in design, build, quality and innovation. The latest EP-X Roadster Series models are products of superb form and function.
Their computer-aided design (CAD) facilities and a deep understanding of sophisticated composite construction set the foundation for this great new frame. Hand-crafted prototypes were continuously refined and tested until engineers, technicians and designers were all satisfied. During manufacture, each frame is Precision Formed, using patented process technologies, to produce bicycles of exceptional quality and performance. Along the way, a whole bunch of new patented technologies were developed. No cutting corners here.
But the striking individuality of the frame is not only for looks and comfort. After manufacture, each EP-X frame will have a unique number to individually certify that it complies with the strictest quality standards, including certification from various international testing authorities, including TUV and the British Standards Institute.
During the development of the Roadster Series, so many innovations and improvements were incorporated in the frame, some have become the subject of new patent applications for road, track, mountain and BMX bikes.