The full limitations on RR are, as far as I am aware:
- There can be only one - Logistics-class ship per team
- There can be only one, Mk.II - Only one ship per fleet may have remote armour repairer modules or shield transfer modules.
- Hull limitation - the ship with the remote armour repairer(s) or shield transfer(s) must be either logistics-configured Strategic Cruiser or a Logistics ship.
Therefore:
- All drone are legal on any ship
- Energy transfer is legal (I think we saw a few capacitor chains last year, would have to check if this is legal this year from the rules, not sure)
- The Logistics ship can also be a block-tanked bait, and a T3 the real logistics ship. (At least one such setup was fielded last year.)