Bars...
The bars are straight in shape and straight gauge Titanium. 22.2mm diameter.
I have a pair, but unfortunately they're in my X-Lite forks that I won from Rex (Trimnell) after a gentleman's bet, and they're simply worth too much to me purely for the memories they bring back. (For those who might not know, Rex was the founder of X-Lite, and passed away in 2004 - I still miss the grumpy bugger).
What I can suggest though is that you might be able to source a length of 22.2mm tube from Enigma bikes. As they have quite handy stocks of odd lengths of Ti kicking around. There is also a company called Dynamic Metals who hold stocks of Grade 9 (3AL2.5V) in the UK, though I've no idea on the sizes they stock.
Also... I'm pretty sure that I have, somewhere, a red 28.6 X-Lite post (probably pink by now). I'm away in Italy at Colnago for a few days, but when I get back I'll have a dig around. If I still have it, it's yours.
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Smiffy