Carl, I got my cloth covered harness for my '46 from here
http://www.ynzyesterdaysparts.com/
They probably aren't the cheapest but I was very impressed with the quality. So much that I had them build me a harness for the Big big bolt GMC.
An no, I don't think I want to admit to anyone what I paid for that little bundle of unobtainium!!

There are plenty of others that have what you need.
http://www.stovebolt.com/links/electrical.html

Good luck.

~ Billy
Old Dominion Stovebolt Society: Exotic Animal Division
1946 Chevrolet Cab Over Engine | In the Gallery | Video | More pictures
1959 GMC 860 | Pictures
1950 Chevrolet 3800 | Pictures
I've got a trailer and I'm not afraid to use it!