As Forrester points out, the question is this: how high does the jacket button- or, for the limbo fans, how low? The same question applies to single breasted jackets, but I think the stakes are higher with a double breasted one. Some likely candidates for DB-as-kilt- jacket are various navy dress jackets, which tend to go higher than civilian ones, and variations on the chef's jacket, such as this one: http://folkwear.com/133.html

Like the closure on a kilt, a chef's jacket can be buttoned either way. Charles Thompson talks about doing chores with your kilt aprons reversed, so as to keep the proper one covered and clean. I have heard of chefs doing the same thing- when the front becomes dirty, you just button it up the other way. Somehow, I doubt that is what happened on the jackets above, but you never can tell.

I was looking at the Sportsman's guide for a DB dress blazer. They often will have one from some oversupplied military branch, but they do not seem to have a suitable one at the moment. They feature a greenish-grey one from the East German army that is too low in the gorge (imho) to survive a conversion. This one is listed as a jacket, not a dress jacket, but it might work, depending on how heavy it is:

http://shop.sportsmansguide.com/net/....aspx?a=891144

Being polyester, it might not appeal to everyone, but it might make a good prototype to show your tailor.

Meanwhile and entirely OT, there are several other great jackets at The Guide,including this personal favorite, ready to go :

http://shop.sportsmansguide.com/net/....aspx?a=759130