Thanks for checking in and for the comments Folks, much appreciated! Terri, good to hear I'm not the only one who finds Meng's plastic a bit "different".
Sleeping on that fuselage fit problem worked out in the end, I got it done yesterday and things look a lot brighter! Before closing it I added the internal frame cross bracing and the gun cables from the control column.


(The dust particles were removed from the cockpit as well!)
I believe the fit problems I've encountered are caused by the fact that the fuselage halves don't match very well, at least on the Kit I have. I read somewhere that parts can warp if the sprues are removed from the mold before cooling sufficiently and since my wings are warped I reason the fuselage halves could suffer the same problems. That's my theory anyway.
Despite the trimming of the frame at the back end in the 10 and 2 o'clock positions I still had to solidly glue the top seam and let it cure overnight, then use a bit of force to align and glue the bottom seam and considerably trim the stitching insert to get it to fit the channel. Filling required is now minimal.



I'll have to run a bead of thin CA down the sides before painting the bottom.

I'll seal the putty areas with Mr. Surfacer and once cleaned up I can spray on the base coat for the "streaked" decals. I'm happy with the results thus far but I'll feel much better once the wings are straightened!
Cheers,
Lance