You should give Ed over at Ed's TC's a call:
http://www.edstc.com/(405)-879-0879
Ed is very busy, works a full time "regular" job, plus does the TC thing. He doesn't really keep his online inventory fully up to date, but he has a larger pile of TC stuff than anyone I've ever known. Leave him a message detailing what you're looking for, and he will call you back.
How about either a 35 Rem, 375 Win, or 375 JDJ carbine barrel? Any of those aught to be plenty for you (I would lean towards the JDJ). TC at one time or another made all 3 in carbine length barrels.
If you're willing to go custom barrel, then really, the sky's the limit. A 309 JDJ would be nice also. Or give the TC custom shop a call...