Panache had told me stories of his tailor in San Jose who had converted a sports coat to an Argyll style jacket for a reasonable cost. After many months of no luck scouring the many thrift stores in San Francisco I finally found what I was looking for on eBay - a light colored tweed. Arriving with a stack of printouts from X-Marks, I spoke with Mrs. Thanh. She spent quite some time measuring, chalking, and pinning. We talked about sewing the outer pockets shut and raising the pocket flaps higher and about using the extra material to build the epaulets. The cutaway would be a problem because of the second buttonhole - a perfect tangent just wasn't possible but it was close. Fortunately she has a set of metal buttons on hand to replace the leather ones.
Price for the jacket on eBay with shipping: about $23. Price of the tailoring and a set of metal buttons: about $110.
If you're near San Jose, you can contact Mrs. Thanh at (408) 266-5507. She's getting used to guys in kilts in her shop
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The "before" picture:
http://cgi.ebay.com/ws/eBayISAPI.dll...1703&rd=1&rd=1
Mrs. Thanh with the happy customer:
Metal cuff buttons and raised pocket flaps.
Epaulet detail:
Rear view:
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