Dr is good. Billy Goat makes a decent one too. There are others but they can be pricey for what they are in my opinion. Does it have to be a walk behind? Walk behinds are nice for tight areas.. I use a small ford jubilee tractor and 5' brush hog..whatever the tractor can run over the mower can cut.. this way you are not walking through poison ivy etc.. A setup like that is about 2k and it can be used for other projects too.
