Thanks again Hugh.
So I managed to sum up the courage with the help of a couple of classes of Pinot Noir and got this damned turret finished, more or less. Having studied Terry's pics, I determined that one of the problems with how I left it was that the box at the front floor of the turret was moulded a little low. I duly cut it off and raised it with a slice of thick card and then also added an additional plate that I missed (both seen at right below):
On the inside, frames were extended from the gun mounts to the roof of the turret using bits of card and stretched sprue. Also, brackets were extended forward and a bar was strung across to serve as the gun sight support.
With the added and modified parts painted, I glued the front turret glazing in place with Testors Clear Parts Cement. I'm not keen on the bare aluminum look but I need to go with the reference pics in this case. I will paint all the outer parts black though.
From the gunner's point of view, you can see the added gun sight and the 4 gun butts. The barrels were cut from the butts and these will be installed near the end of the build.
Back to the engines now with a bit of a tricky assembly sequence. The fit of the parts requires that the cowl flaps be installed to the nacelle first, followed by the engine and finally the nacelle cowls. I would have preferred gluing the cowl flaps to the cowl itself and then slipping the whole thing over the engine but, alas, that can't be done. This left the problem of how to make sure that the cowl flaps, which are missing a segment to allow for one of the air intakes to fit and are therefore easily flexed, would ultimately line up with the rest of the cowl when glued in place. To remedy this, I taped the flaps to the cowl , making sure that the circumference lined up and that there were no steps and then glued the flaps via the 3 provided tabs to the nacelle with CA.
Not sure that makes sense to you but it does to me!
I'm really doubtful now that I'll get this beast done before the end of the month but will do my best to advance it far enough to maybe be able to finish it with a small extension of time. I'll know better as we get closer and after more bench time but in the meantime, thanks again for the interest and help.