You can try jacmusic.com, Jac is the man to deal with, however not sure if he going to sell outside of EU, but you can try.
From things I read/heard EML's are not WE's, but thats doesnt mean a bad thing, however depends on amp / set up you use. So far, I am pretty settled with KR's tubular type and AVVT's 32B CL, which I believe would be close to EML's, but not 100% sure about it.
From things I read about the WE's, they are sweet, but modern production tubes, except TJ Globe Mesh and Sophia's Mesh, arent sweet. They are punchy, articulate/tight, with more nutral ( some call flat ) mids, extended with great 3d image and great deep bass. If thats what WE's are, well, you got the winning ticket:-)
I own Cary CAD 300SEI and use full house of ECC33 Mullards Brown base as driver and input and the results are very good. But when I use some other tubes, such as RCA Grey coated, Sylvania Bad Boys or TS Mouse Ears the mids are showing some "weakness", at least in my system. By the way, I use ECC82 Mullards in my CDP as well, all NOS 50's production, so, no muddy stuff here.
One of my hobby mates using EAT 300B's and he is very impressed, but these are like EUR800 a pair here in EU, not particular cheap, but if you are looking for WE replacement you may not going to find any, however most CARY 300SEI users, include me, thinks that Sophia's Mesh are way to go if you are looking for close replica, but than again, in your amp it may be differ sounding.
