I went through the same problems a few months ago with my custom rifle with a 33" barrel and break. I called Jerry and Lynn Morton (724)593-2037 to inquire about a custom made soft case and found them to be very nice. I ended up building my own hard case but would recommend you call them if its a soft case you are after. The prices are very reasonable and others that dealt with them said they were very good. They will make any size you want.
Hope this helps,
Frank D