What modifications would I need to make?
Aaron,
just go into the aircraft.cfg file and alter the two points shown in bold below. Those are for the main gear, you do not need to alter the tailwheel.
[contact_points]
static_pitch = 9.0
static_cg_height = 3.5
max_number_of_points = 9
gear_system_type=4
tailwheel_lock=1
// 8 9 10
point.0 = 1, -21.6, 0.0, -0.80, 1200, 0, 0.65, 60, 0.10, 2.5, 0.30, 0, 0, 0, 0, 140
point.1 = 1, -2.95, -3.5, -4.20, 2000, 1, 0.75, 0, 0.22, 2.5,
0.50, 0, 0, 2, 0, 140
point.2 = 1, -2.95, 3.5, -4.20, 2000, 2, 0.75, 0, 0.22, 2.5,
0.50, 0, 0, 3, 0, 140
point.3 = 2, -4.60, -17.0, 3.28, 1500, 0, 0.00, 0, 0, 0, 0, 0, 0, 5, 0, 0 //LW
point.4 = 2, -4.60, 17.0, 3.28, 1500, 0, 0.00, 0, 0, 0, 0, 0, 0, 6, 0, 0 //RW
point.5 = 2, 1.2, 0.0, -2.2, 1500, 0, 0.00, 0, 0, 0, 0, 0, 0, 9, 0, 0 //tail
point.6 = 2, 1.2, 0.0, -2.2, 1500, 0, 0.00, 0, 0, 0, 0, 0, 0, 4, 0, 0 //Fslg
point.7 = 2, -18.75, 0.0, 6.45, 1500, 0, 0.00, 0, 0, 0, 0, 0, 0, 7, 0, 0 //Aux1
point.8 = 2, -14.12, 0.0, 0.01, 1500, 0, 0.00, 0, 0, 0, 0, 0, 0, 8, 0, 0 //Aux2