That's a nice surprise! I would have thought carving wenge would be brutal.
How about a glued bridge? So far I've never heard an archtop guitar that I liked... love the look, but they all sound choked compared to a good flat top. It would be interesting to see what happens with flat style soundhole, bridge and bracing on a carved arch.
Or you could try a zero-downforce bridge so you can forget about structure, and shape the thickness and bracing entirely for tone. Use a negative neck angle so the strings point toward the tailpiece with very little break angle over the bridge (to reduce the necessary neck angle you can use a rigid L-shaped tailpiece rather than attaching it with a flexible cord). Then file slots into the saddle to create horizontal break angles, half angled left and half right so the strings all counterbalance eachother. I heard the idea was patented 12 years ago, but never could find the number, so it may or may not still be in effect for the next 8 years. But for personal use you should be safe regardless.
Or build it more like a regular archtop because obviously many people do like how they sound
