Personally I don't neutron boost and honestly having two AMFU's is overkill on this build. Better to dump the smaller one and power up the large one only when I need it, or replace the large AMFU with a two unit SRV, though that will increase mass. As DBond mentioned Phantom has great optional internals with many modules to choose from. Consider in addition to a moderate AMFU a Repair limpet controller to fix a damaged hull. As my mind wanders occasionally, I do heat damage to the ship, or land too hard and create hull damage. Repair is peace of mind if a long way from home. If choosing Repair limpet controller remember to add a cargo rack for the limpets (you can synth the limpets when you need them).