I am thinking of getting a landplane to work about 3/8 mile of gravel road I have. They might be called by different names in different parts of the country such as land leveler, land plane, or land grader. I know they are sold by Road Boss, King Kutter, Woods, Land Pride, Rankin, Bush Hog, etc. I have a couple of rear blades and a box blade, but the gravel and crushed concrete on the road keeps doing down. Anybody with experience with a landplane and recommendations as to what I should look for in one, e.g. scariffs, adjustable blades, angle of blades, thickness of steel, width, etc.? My largest tractor is a 35 horsepower Farmall 340. Thanks in advance.