The gutter is about 27feet long. I want the downspout to be repositioned on the opposite end from where it is now (I want to eventually run piping underground thru my lawn). Is this type of job a DIYer or usually left to pro's? Im just worried about undoing the original "seal." Its aluminum and installed two yrs ago. With some TLC there shouldnt be need to replace any of the core materials... For this sort of job will I be better off letting Pro's do it? I wont mind spending some money on labour if it means getting it right the first time.