Do you have info on range/radius/endurance of those projects?
The only info I have on the Mystere XXII range is from Ailes Magazine (Dec 1955 article). They quote a ferry range of 2,200km with external tanks. However this is 7 months before 1st flight so no idea if this turned out to be an accurate estimate.
Per the specs I posted above, the Mystere XXII 01 prototype had 1,600L internal + 2x 350L external tanks, giving it a total ferry fuel capacity of 2,300L. The Mystere XXII Marine would have been able to do better obviously since it would have had 2,400L internal fuel.