Help Cornering Pier Holes for a singlewide

Need someone that can help me dig. $20 per hour. Need to finish digging the remaining 17 holes. Here is my situation…

I used a 24” auger to dig 20 holes. I need the holes to be 24”x24” so I am having to dig the corners out with a spade, shovels and a hoe. I did 3 myself but I need help doing the rest because it’s a bit time consuming.

Whaya say, wanna help me out?