So, has anyone tried tweaking the build sequence, to produce conventional fuselage halves, rather than the front loading sub-assembly otherwise directed in the build guide?
I haven't, and if I'm honest the idea never occurred to me. I have a MkIV in the stash, and it might be fun to attempt your sequence. I'll watch how you get on if you try it!
I do like your idea of pinning the sprues above the bench like that. Sadly, it won't work with my setup, but it's been mentally filed in case my workspace is rearranged at some stage.