Very interesting. Presumably Andrew is aware of the differing fender stowage boxes - early ones top opening, later, & retrofitted, being side opening - design wise, all that requires is that the bins are removable a la Chieftain.
Same with the turret top plate, and engine & tranny decks which you've already mentioned.
Ideally periscopes would be left empty, modding those on Chieftain has been fun.
Hopefully the turret stowage boxes are separate from the turret? That was a surprise for me with Chris's Cent - in 1/16th the gap is noticeable, whereas on my smaller Cents - 1/35th & 1/24th - it's not.
The engine decks of the Mk 3 Cent are a diabolical design, which you only need to suggest rather than follow.
Has Andrew mentioned crew figures - his Chieftain crew are really good.
Mal
Top Opening Fender Stowage boxes - actually open
Early top opening stowage boxes
Turret - Stowage box gap RHS rear
More Turret - Stowage box Gap RHS front
Turret - Stowage boxes gap LHS
Little seen detail behind turret LHS of hull in front of engine decks (turret reversed here)
The diabolical engine deck interior