Did pretty much everything wrong and still managed to pull it off
Repurposed duffle bag cordura.
Repurposed zipper from same duffle bag.
Extra seatbelt I reclaimed from a wreck for hammock straps, cut and used as bag straps.
Plastic re enforcement in top panel.
Next steps:
Purchase and sew on 2 inch velcro strips to straps.
Trim and burn the strap edges.
Replace metal zipper pull with paracord or something less noisy.