You can always order from a hatchery in the spring for those breeds. No idea on where to get the Ixworth. Are you wanting to show your birds? The Java, you can get online, from a hatchery and some people breed on here. If you're not worried about showing them, I would look at a hatchery. Otherwise, you could probably take a look on the Java page in the Breeds, Genetics and Showing or you can take a look on the "Heritage Breeds" thread in the genetics pages. Sumatra are fairly easy to get ahold of. Again a hatchery and some people up here might have some. If not, you can find those online on lots of places. As for ebay, as long as you know the breed standard and know what to look for in good quality birds, you can find a heck of a deal that way.