Perfecting printing at a smaller scale and prop designs, can be a challenge..
Prusa slicer: .13; 13 walls, 2 T/B with support. The P51D from 3DLabs can be scaled down. At 75% it is a bit heavy and has a tendancy to tip stall on take -off. This version is (the noe part of the fuselage is at 80% scale and employs a LW-PLA wing and a printable 3-blade prop. Assembly to follow.