A worthy reason to sacrifice an F-104 and a Lear (engines) if I ever saw one. :)
I wonder what it would look like in 441 (Silver Fox) TFS `Checkerbird` markings. :)
I think for the wings on the C.117/10 I would go with using card stock to extend the (relocated) wings of the F-104. A little detail added to the tip gives you the look of the rotation mechanism.The one change from your excellent artwork I might consider is building in a "passive" variable dihedral system which would allow the wings to droop. The engines are hard to service as drawn, and I have doubts it would fit in a Hardened Aircraft Shelter at CFB Baden with the engines up and out.
Frost's concept meant that only the forward fuselage of the original designs and general C.123 wing construction was retained. The fixed tanks/undercarriage housing of the original P-450 concept were moved inboard. This resulted in a small interruption to thrust ejector flow but also reduced structural weight and left space for twin, outboard wing pylons.
Would a Twin-P-450 with two fuselages improve stability on take off and landing? hehe...