I'd love to paint 2 bright yellow brand new shiny plastic kid slides on our playhouse. I want them to be a dark hunter green. Ideally with a shiny finish (so it's slippery). What would be the best products to use to do this? I was thinking a bonding primer--which one would be good? Followed by maybe an alkyd exterior floor paint?? Need something to hold up to some flexing of the slide, kids climbing up it with shoes, and UV rays. Tricky, right? Please help. I'd love for this playset to blend in a little better.