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.
Too bad dingotone can't be shipped overseas is this for technical reasons or because most customs dont allow it?