I want to throw this out there for anyone looking to do something similar. I am pleasantly surprised at how well my sloppy imperfect work looks. I started out with a Guage to try and make the relief of each lap joint perfect. It was an epic fail. Then I just said “screw it” and eye balled the joints.
As has already been discussed the rude and crude method looks better to my eye. It adds “age”. It looks like things warped, split,moved, and separated which IS what happens.
I am actually very pleased with the inconsistencies. And when painted I think it will look even better.
On an additional note, I learned something new which is always good. But you can “erase” mistakes and imperfections like finger prints in styrene soaked in MEK by applying more MEK with a brush by kinda scrubbing it.