I've got dirt to move in my back yard and considering renting a Toro Dingo. I suspect that it will be the smaller model like the 220 but if available tx1000. How well do these dig? The end project is 18'Lx27'W tapered 12" to zero across the width. Best guess about 10.5 yrds minus the space of a lazy radius along one corner. I plan on renting a dumpster with low curb and parking it so that I can drop from side or swing door. Any Ideas??