Thanks Dennis. I guess I need to find out what kind of blocks to get. I'm printing out the installation guide this morning for good "break-time reading" .

FYI: Confirmed excavator will be John Deere D35 with 18" or 24" bucket. There is option to get bigger "cleanup bucket" ~35" but I want to make sure I can dig. The rental rep said I can attach angle iron (or other long flat bar) to the excavator's thumb then drag it to level out the site once material is removed. I'll need to get the angle iron though. (I'll probably just do that Saturday ~noon as a break-time project once I get a chance to see how it will work.)