If you are having problems finding them with a search - don't use "new Vauearo" . . use SAA or Colt SAA - same holster.
Check out flea bay . there are usually some on there. You may be able to find some but most will be of the traditional "western" loop style. It may be hard to coe up with a variety of holsters for CCW if that is what you are intending (I'm assuming that is what you are planning on). Part of the problem is that there is not the "demand" for a IWB or OWB (such as a high ride) as very few carry a SA for CCW.
You also might check with Bob Wright on this forum - he carries a SA if I remember correctly. He might be able to steer you in the right direction. If you can't find something . .you night have to have it custom made. Go to the CAS City site - go to the leather working forum and check out some of the work over there. Most of the guys are doing single action shooting rigs but you might be able to find one that would do a custom holster to fit what you want.
A New Vaquero should fit the same holster as for a SA Colt, Uberti Colt clone (Cattleman, etc.).