Cockpit and install, when I designed the tray and wood if was for a 400gram cockpit and small TP Rx Li-Po packs. Matt's model had big Rx packs on 6mm ply supports either side of the nose unit! heavy pilot,
Turbines vary in weight, tail servos. I always bolt in the fixed position stuff and move around the batteries-heavy bits. Again, Matt has smoke pump, lots of heavy "bling" (two ball-valves AND a Festo quick connect for filling)

The EDF Hawk I've fitted the tail servos, making the cockpit canopy, fitted the fan, will make up the tube and then work out battery position...