I have a problem with a neighbor on a commercial building I own and live in. I have built an apartment with a screened in porch and deck on the top floor. The buildings are attached to each other on the side our building is about 20 foot longer on the rear. I have a roof that slopes toward his property and he will not allow my roof to hang over his property. Therefore we must cut off my overhang and gutter.I need a rain gutter installed in my roof so to catch the water. Do you know of any designs? Thanks