I have no prob with you being on field during games as long as your not wearing a playing jersey (so you are not mistaken for a player) and yes there will be a schedule soon as the last team confirms.
I can wear a high vis jacket if you like, seems like the best idea.
But I can't promise pictures of every team etc as I have to be on and off the field myself. But yea if teams want pictures let me know and I can try my best.
I have been told unless you got an expensive SLR camera (I haven't) just add a filter to the end of your lense and if your lense takes a hit then it will absorb most of the hit. Otherwise any thing from bubble wrap to plastic bags to cover your camera