I believe you would need to go with just pods on the inboard pylons because I don't think they were plumbed for fuel tanks. Alternatively, you could put Sidewinders (or equivalent) on a dual rack there for self-defense if needed. IIRC, the inboard pylons cannot carry the same loadouts as the outboard pylons. If you had the necessary pylons, you could probably put dual JL-100's on the centerline pylon as it as twice the capacity of the outboard wing pylons.
Note that the missile wells are designed to carry Sparrows, or something of equivalent shape, semi-submerged and I don't think Sidewinders would work well there without adaptor pylons.