Been down this road recently. JP2C with a mesa upright 212 V30s. Tone match with a IR capture of the cabinet is gonna get you closest, plus an additional bit of EQing for whatever your playing through. Soon as I get my stuff set up again I will try and find my setup and share it. Im on to another amp this month LOL so I will have to dig it out of a backup. Was my live setup with Friedman ASM-12s wet dry wet rig.
Though he's trying to make the model sound the same as the head through his real cabinet, not have the Axe FX in the FRFR sound the same as the cabinet. So an IR Capture of his cab isn't necessary here.