Thanks Hugh. Addition of details continues.
Studying detailed pictures, I drilled holes for the oil filler cap and one lower down for some kind of vent or drain.
The filler cap was then punched from card and some details added. The vent tube is solder and I hollowed the cut end with a pin.
On each side of the fuselage, there appears to be some kind of air outlet consisting of a hole and a half-round cover. The port side has a raised detail for this but it's not very convincing. The starboard side has nothing. Note also the joint of the undercarriage to the fuselage which needs work (a result of my aforementioned persuading).
Here you see the vent hole drilled and the cover plate attached. Yet another vent pipe was added over the gun trough. The repair to the undercarriage joint is underway using stretched sprue glued in with TET.
On the tail end, the rudder actuator cables were added using stretched sprue.
And here we go with the rigging. For this, I had previously bought some metal resistance wire from a vaping company (see post 4) but I've since learned of a tip using a different material that works extremely well. The secret is this stuff:
You can buy it on line but if you live near a store that specializes in knitting products, you may be able to pick some up there. I got my roll for 7 bucks and it should last me a lifetime. This stuff is an elastic material that is knit into clothes that need to be stretchy, like socks and hats. In addition to being stretchy, the cross section is also rectangular which is perfect for rigging since most aircraft rigging is not round but aerodynamically flat. Drill a tiny hole (my smallest drill at the moment is 0.5mm which is a bit large - I broke my 0.3mm which is ideal) dip one end of the elastic into a blob of CA, put some accelerator into the hole and stick in the rigging. At the other end, cut the elastic short of the end point, dip into CA, add accelerator into the hole, put the elastic in and let go. Bob's your uncle - a nice, tight length of rigging.
Here's the end result of my first try at the tail end. All of this rigging was achieved with just two lengths of this material.
The holes have since been filled with a bit more CA to cover them up. I'm pretty happy with this material and now my vaping wire is up for grabs if anyone want it!