I have a Yanmar 1700 I bought to maintain my gravel driveway, about 1/8 mile. 1/3 of the drive is solely mine and 2/3 of it are shared. My part is #57 gravel and basically just need to spread/level the gravel. The remaining 2/3 is finer material, packed hard with some potholes. I have a 5 foot...