I should have a Picture of my custom manure pump this afternoon. It is a 1/64 scale replica of a Houle manure pump. Some people make them for like $65 but I am sure I could arrange something with you if you like what you see. I will also have a  video on youtube of it and I will say how to build it if you subscribe to me. =) it took a long time but it is almost done. If there is anything you want to know just ask and i will try to help you OK.