can rent a tractor with brush hog behind it for $165.00 per day, or a minimum 2hr rental of about $75.00. i have 2 bids to give out. fist is about an acre and a half. just mostly tall grass and some bigger weeds. second one is 4 acres, has 1 year of growth. and has small trees poping up. about as big around as a thumb. will a brush hog handle the second one or do i need something bigger?