Pictures AND details, please!
It's a very simple design based on a thru-neck which braces the tail block to take the string tension.
The bridge is braced to the tail block by an adjustable rod.
The top was thinned down to about 2mm and the edge thinned even more to free it up - I guess I was thinking Rossmeisel - to get the resonant frequency down so we can get rid of that reflex port mis-named the "soundhole".
The main problem now is bridge rotoation about the long axis which shows as a thump when playing hard. I have a plan......
The other problem is to make it look nice.
I put some theory on my site www.guitarsetc.co.uk if you'ld like more and I'll put some pix up too.
