[CR]fastback stays .... how to?

Coolio's,

I was wondering about the fastback stays (is that what they're called?) on this raleigh pro being sold downunder. More specifically ... wondering how they're made assembled? And if there is plus or minus to doing such an arrangement other than aesthetics? Any special lugs needed or can such be fashioned to any seat lug with an adiitional sleeve or widget?

you'll see what i' asking for in the last pic of the below ebay auction >>

http://ebay.com/<blah>

or item # 220238599516

Something about the way the seat stays join really appeals to my eye's ... I know cinelli's had a similar fitting but with a wider bolt?

thanks, ciao

Ben Kamenjas
Kensingon, NSW
Australia