SS Rail should be cut into 5 pieces. MEASURE FIRST.
Do not cut at same seams as the rubber rub rail. SS insert should overlap all rubber cuts.
Piece 1 start at nose with a screw hole just shy of dead center and measure approx 6-7 screw holes port & starboard sides to foward of the foward vents. Screw rail insert as you .
Pieces 2 & 3 port & strbd sides run aft to approx to the rear of the rocket launcher .
Pieces 4 & 5 screw as you go, make aft corner bends and have pieces meet at center line transom mark ..pieces should over lap a few inches in order for a precise seam trim.
A rubber mallet may assist you . I don't know how long each strip pieces you bought so measure them with a fabric tape first and verify.
I hope this helps
