As far as I know, the longer you wait, the more expensive it gets having him registered. Plus, as was said, you'll get papers which show mom's pedigree. It can be put on allbreed and people can then tell you more.
From what I see from the sire side, it's Skipper W breeding. Lots of it. Nice! I have a Skipper W bred mare. And another member on here, Dreamcatcher Arabians, also has a Skipper W bred stallion.
If you have the address of the ranch, find the phone# and call, or write a letter. They might be out of breeding and have no more web presence.