I'm not aware of any sources of production 953 frames. Just the tube set for a 953 frame costs about $600, so building stock frames would be expensive speculation. Many framebuilders make custom 953 frames, though, including Waterford, Anderson, Bob Brown, Dave Wages, and many others.
I've had my 953 bike for three years, have ridden it over 5,000 miles, and am still on my honeymoon.
That is a stunning bike Stan. Are you the framebuilder?
No; sadly, having built only one frame my framebuilding skills are still at the novice level.
My bike was built by Dave Wages when he was at Waterford. Dave is the owner of Ellis Cycles and won "Best of Show" at this year's North American Handbuilt Bicycle Show in Richmond, VA, with one of his 953 frames.