Wow thanks! Maybe it will serve as inspiriation for others thinking about doing the same thing...

I was a broke teenager with time on my hands and I did all sorts of stuff I wouldn't attempt now. At that time I did, as I recall, four different jacket conversions, all from suit coats or sportcoats got at Goodwill:

1) Full Dress military doublet
2) tweed Day Dress jacket
3) 79th New York military jacket
4) 1780's Highland regimental pattern jacket

They're all long gone, to where I have no idea. I don't think I have a single photo of the tweed Day jacket conversion.