Canoe spray paint

[Moe rab]

How do I go about spray painting my red canoe?

I have some paint peeling off the canoe, I originally bought the canoe for waterfowl hunting but the canoe is dark red and white in the inside, fiber class canoe 16ft, I am thinking I need to spray paint it maybe the outside deep forest green and inside gray or also deep forest green, I haven't done this before and not sure if deep forest green is best option for blending in the water with bushes and what not, any recommendations? And also would I have to grind off the original paint on the canoe or would the spray paint stick on it?