In fact I have planned to use stitch&glue method for this project.
But as it turns out, I was too lazy to try new things.
Only the chassis frame is glued with epoxy, using square edge stringers (20mm square) for taking up the tension/pressure forces
Due to the long curing time and the mess caused by the epoxy, I stayed away from building the body the same way.
For the bodywork, I used my old method to join the 4mm okoume panels edges with spruce stringers (15mm square) + wood glue and little screws.
All curved edges were glued together using also curved stringers.
I still have not tried steam bending these stringers.
Instead, each of them was made from 3 layers of 15x5m battens, glued over a template of the same shape as the particular edge.
The templates are simply a row of brackets, following the curve I wanted.
All three battens were clamped to these brackets, when the glue in between is still wet.
The following pic shows the making of the curved dashboard frame, in this case laminated from 5 layers of 15x5mm battens
After the glue has cured (30minutes), I mostly planed the stringers with the hand plane or the belt sander.
Finally the stringers were used to connect all the panels.
I screwed all parts together each 10cm/4in with galvanized wood screws
All in all it's a rather time consuming method, although it's real fun for me to work this way.
I also found out the PVCA glue is quite corrosive to the galvanized screws.
Surely the time I need to learn the stitch&glue skills is a good investment.
My next project will be a fully wooden monocoque, without much framing inside.
This will match the design principles for stitch&glue much better.
PS: Thanks for your words !
I hope to finish it in spring, best time for photos and vids...