Quote - Has anyone tried to export the V3 head as a morph target and then reload it back to v3 and then use Morph manager to transfer the morph to SP3?

There would be no differences between the meshes, so all the deltas would be zero, unfortunately. It wouldn't work, sorry.

Quote - ... export the Vic 3 head, left eye, and right eye as separate morph targets ...

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SWAMP: it was very likely your original post which gave me the directions to make my own figure, so thanks for that. I couldn't find it either...)
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I had forgotten about the eyes when I posted my method. The problem with moving the eyes by morphs is that the joint centres will still be in the wrong places, and posing the eyes will result in them moving relative to the head; the more extreme the pose, the further off-centre they will be.

My own V3/SP3 figure probably has this same deficiency, to be fair. However a joint setting pose should be able to fix that. If I get the time, I'll try to devise one.