You might be interested in looking at a collection of Erie timetables at [ http://acumen.lib.ua.edu/search/all/erie railroad?page=1&limit=20 ]. The search brings up some unassociated items. There're some very old Erie documents here, some over 100 years old.
Found this Middletown, NY slide in my collection a few nights ago, shot in December 1981. It was on industrial trackage, not the main. Middletown, NY was quite the place once, wasn't it? The Erie, NYO&W and M&U were all there.
Nice shot! Orange County, New York has such a rich history, both in general and in terms of railroad history. Frequently, I keep questioning what I want to model, because there is so much. It sometimes feels like I am doing a disservice to that history by focusing on the early 80s, since that is Conrail-era, but it is the time that I personally connect with most, as that was when I was first exposed to it all. The thing that has really thrown a spanner in the works, though, is that I just picked up a full set of 1920s cyanotypes (12 sheets at two feet by over four and a half feet, each) showing the full Erie Pine Island Branch (formerly the Goshen & Deckertown) trackage. It is well out of my era, and those tracks were pulled in the 1960s, but there are so many interchange opportunities there, leading up north into Middletown and east through Campbell Hall and Montgomery and southeast towards Greycourt - with so, so many lines represented. Spent a lot of time in Middletown growing up, as that is where my father lived. M&U ,and what is now left of it as M&NJ, is still running some local traffic on the old L&HRR trackage through/over Greycourt, I believe - or at least they were when I was last around there about eight years ago. Think that they are down to a single locomotive now, if I am not mistaken. I can't place the photo, offhand, but I am guessing it had to be somewhere north of Dolsontown Road and east of 17M in that little hive of industrial trackage that ran through there.
Those track charts sound really neat! The good news is that you have plenty of modeling options to choose from.