What are the relative contributions of the body and wings to missile lift?
What is the proportion of lift coming from the wings compared to that of the fuselage?


It can be almost zero.  The ASRAAM's only fins or wings or lifting surfaces or whatever you call 'ems are at its very tail.  Any "lift" they impart, that far from the missile's center of mass, would pitch (or yaw) the missile instead of counteracting gravity.  So almost all the lift must come from the body having a slight nose-up attitude.



Another missile with a similar planform is the (ground vehicle launched) LOSAT.