First picture:
Bottom of nacelles.
You can see the faint outline of the piece of fiberglass that is removable.

Second picture:
With piece of fiberglass removed.
That white line is the guide for optional wire controls of all 4 flaps by one LARGE servo.
There is not much room in there for larger tanks.
I bought 16 oz sullivan's flexible tanks and I'm not sure if I'll be able to get them in there.
There's a servo mount on both sides which I'm assuming for upright or inverted engines.
I may be able to carve some ply away and have the tank shifted to one side.
I don't thing this will affect fuel flow.
I may have to go to 12 oz flexible tanks.
The manual says 15 lbs.
With the one servo, versus four, controlling the flaps and one also for the rudder,
this may be possible.
I didn't see any instructions for elevator servos but I only looked through the manual quickly.
With this light of a twin, and using OS FX .91'x, I will be able to fly at 1/2 to 3/4 throttle
and save a lot on fuel consumption.
All the parts are very light so she may come in at 15 lbs.

Third picture:
Vertical tail and rudders.
Built up wood and fabric.
The manual also shows optional wire control with one servo of the rudders.

Fourth picture:
Loose assembly of the plane.
83" wingspan.
Seems like it would have been easier and stronger to make the top removable for
putting the wing on (but time will tell) instead of having the bottom removable.
The plane would also stay upright that way when putting her together at the field.
Four bolts instead of 2 dowels and 2 bolts are used to hold the wing to the fuse.
The wing is two pieces that obviously stays together.
I was thinking that we would have two outer wings to attached so the business part
would all stay together (again, time will tell on the design).
Struts will be needed.
I'm probably going the way of the P-61: 1/2" on the mains and 7/16" on the nose.
VQ and I think Robart has these.
All hinges are CA type: I'm using Great Planes medium nylon pinned hinges (GPMQ3972).

She looks nice, even in the 'loose' assembly stage.