You mean the "made in China" new Borrani rims. I've bought a pair and laced them up for my bevel. The quality was crap and we had a lot of problems getting the bead line plumb but we got it right in the end. Who knows how they'll cope on the road. In defence of the supplier, Motocicli Veloci, they sent me a new set for the postage costs after I complained. So I now have 2 spare WM3 40 hole rims gathering dust.
I'd check what Phil (Road and Race) wants and compare the prices. From memory mine cost about $300 AUS drilled and delivered for the pair. You can also buy exactly the same rim off a bloke in Victoria, Fastline Spokes. He gets them made on the back of Motocicli Veloci's order and they're exactly the same. He's also owns and rides Italian bikes so he's savvy to your needs.
Chasing spokes is your next problem. I bought some original spokes off Ian Gowie for a fraction of the price being asked by Titmans and all the other rip off wheel builders. They all get them out of China and for 5 or 10 cents each, but will sell them to you for $150 a set. Fastline is cheaper but not by much. I'd even consider buying them from Buchanans in the States who are cheaper still.
Shop around it's worth it. The sooner the arse falls out of the Italian classic parts racket the better.
http://www.buchananspokes.com/products/spoke_kits_ducati.asp
http://www.fastlinespokes.com.au/
http://www.motocicliveloci.it/inglese/catalogue/cerchiborrani_uk.htm