700 yards of material at an average of 19"? I would not hesitate to use my TL130 to spread the material and compact it. We do it frequently here. A TL130 with 12" tracks, a full bucket of sand and track pack the material in 10"-12" lifts. We regularly get 95-97% density.
Kajun, did you buy a track loader yet? I'd use that to do this job.....