The poo oil might change the colour, as the stuff is a baby poo yellow....
Might pay to look at a polyurethane clear rattle can spray (if you dont have spray gear)
I would avoid using acrylic clear, it can look great for a while then do some funky things such as shrink and crack, go a bit milky or uneven.
Jarrod, who did our spray paint tute vids used to use acrylic but now avoids it because of some of these reasons.