"Best" place? Logan's Closet, bar none....problem is wait time....can be 3 months to 3 years (no kidding)..... I "hear" Magnoli is good. Heron makes them, but they are thin leather. I'd stay away from Wested.
Logan's Closet goes by "evilmechanic" on Ebay. He occasionally has ready to buy X jackets... he currently has a size 38 X2 jacket there now.
I hear the Museum Replicas one has a bad fit and the leather is "rubbery"
I's contact Dan at Logan's Closet directly. He "may" have a run of X jackets currently being done. You might get lucky. Check Filmjackets.com. Someone may have one for sale there.
Rick runs the site. He got into producing jackets after a while and then something happened...no one is sure what...but he has been absent for a while and not too many new members pop up. I've heard your story from a few people who would like to join the site.
Yeah, I can imagine it must be quite frustrating. Rick is on there, but sporatically. Mike is a co admin on there and a good friend of mine. I will reach out to him regarding this.
In the meantime, if you see something there, contact me, and I will touch base with the member.