I use to be a heavy equipment operator by trade.. Back-ho, track-ho, dozer, front-end loader, crane, skidder, and so on.. You do not want to use wood chips.. I'd rent a dozer for a day.. or pay someone to do it.. Grading with a dozer or a back-ho may look easy but it's not.. Anybody can run a dozer but only a few are truly operators.. doing a 100 plus yards by hand will take forever.. I takes me about a hour and a half to unload a cubic yard from a trailer.. And its back breaking work.. on average it cost about 1000 a for a operator to run his equipment for 8 hours minimum. Or about 5 to 600 to rent the equipment for a day to do it yourself