To address question #1 the park seems to be fishing nicely everywhere that I have heard and you should be able to catch some fish mostly everywhere, its that wonderful time of the year. The biggest factor is making sure you are fishing fresh water that hasn't been fished right before you cast a line. Just find a stretch of water that looks good, make good presentations and be stealthy and reel em' in....i wish it was that simple haha. Also the fishing reports advice about nymphing early and dry flies in the evening seemed to be very helpful for me on my last outing. Good luck to ya brother.
"In the field of opportunity it's plowin' time again."