As someone who started with the same idea and eventually pivoted, I'd highly suggest focusing on one vertical. Concentrate on solving this problem for a narrow group (say, outdoorsy people) and move on to other equipment categories. It will also simplify the marketing and custom acquisition on your end.
It's a really interesting problem to solve and I'm still bummed to this day I spent a year on it with nothing to show. I hope you solve the puzzle. Good luck.
Not to steal dopeboy's thunder, but here (http://dopeboy.github.io/Lessons/) is a post-mortem about his startup. It might provide some good tips on things to avoid :)
It's a really interesting problem to solve and I'm still bummed to this day I spent a year on it with nothing to show. I hope you solve the puzzle. Good luck.