you can buy the clamp parts but only for carbon rail
You can buy replacent WCS Carbon/Alloy 1-bolt rail clamp sets with two different dimensions here: http://www.universalcycles.com/shopping/product_details.php?id=32062
- Optional 1-Bolt saddle rail clamps to replace stock clamps on Superlogic/WCS Carbon or WCS Alloy 1-Bolt seatposts (7x7mm) with 7x9.6mm (Fizik carbon rail) or 8x8.5mm (other carbon rail) clamps
- Note: alloy clamps work on the Wilier Cento series frames
But what you need is the original 7x7mm clamps rather than 7x9.6mm (Fizik carbon rail) or 8x8.5mm (other carbon rail)?
Edit: Just saw that you can order the 25mm offset Ritchey WCS 34.9mm Stubby with 7x7mm clamps directly from Ritchey USAs website: http://www.ritcheylogic.com/dyn_prodfamily.php?k=299426
However Ritchey USA doesn't ship outside the US, but if Ritchey offers this part from their own online US shop, you should be able to order the same part through a Ritchey dealer. But I guess you would then have to order both a 34.9mm Stubby with 7x7mm clamps and
a 30.25mm Stubby without clamps; since they don't offer the 30.25 with the clamps included for some reason.
WCS 1-Bolt Mast Topper, 30.25mmx50mm, 8mm offset, w/o clamp 8mm 59.95 Not Included
WCS 1-Bolt Mast Topper, 30.25mmx70mm, 25mm offset, w/o clamp 25mm 59.95 Not Included
WCS 1-Bolt Mast Topper, 34.9mmx70mm, 25mm offset, w/o clamp 25mm 59.95 Not Included
WCS 1-Bolt Mast Topper, 38.35mmx70mm, 8mm offset, w/o clamp 8mm 59.95 Not Included
WCS 1-Bolt Mast Topper, 34.9mmx50mm, 25mm offset, w/ clamp 25mm 74.95 7x7mm Clamp Included
Or maybe you can buy a used Ritchey WCS Stubby from someone who has repalced it with a NoRa or similar replacement. "Gearjunkie" for example just mentioned having replaced the Ritchey WCS Stubby with a NoRa.