I built a pond once, 650ft dam 30ft tall. Looks like sort of a berm there under trees now just short. So they wanna build that up put the trees back in. Super doable job. Use the skid loader to drive the soil in as you build your berm. Shaping it as you go, 4 to 6in thick driven hard to pack. You'll be in upper 80%, lower 90% compaction, even more if your layers are thin. Slope down to the ditch, and down to the edge of the yard, done. 4k is good price, might go up a touch. Keep help home till dirt work done.