All i can suggest is look though the beginners forum, and then zone in on the help me my first scope, newbie looking for suggestions kinda threads. grab your chair and a drink because there is that much information almost telling the same thing over and again
I don't find short focal length newtonians a issue to collimate its as easy as a longer focal length. More critical to be right yes but in any case no different. Like always the better your equipment is the better your outcomes are!
Good luck