Trimming the fuselage sides.
I used a coping saw and small hand saw with a hack saw blade to trim the left front fuselage side then the right front fuselage side. The front foam/fiberglass and longerons were both trimmed.
A carpenters square was clamped in place to avoid cutting inboard of the trim lines. The fiberglass is hard on the cutting blades so I procured some additional dremel and hand saw blades.
A dremel cutter and the hand saw were used to start trimming the left rear of the fuselage. The foam/fiberglass was trimmed but the longerons are not to be cut.