I agree with Pandot that mischief night is probably the worst night to go visiting these places. I recall that one of the SF rules is no one is premitted after dusk. Thankfully, this is a very relaxed rule. However, if there was ever a time it would be enforced it would probably be mischief night.
Most of the usual places of interest like Leeds point and Indian cabin road are going to be filled with troublemakers and kids. Taking heed to the previous paragraph, Quaker Bridge might be a good spot in itself. Alledgedly, a number of Quakers had drown there (ghosts?) also, I seem to recall in some of my literature reading about a suspected cemetary near the bridge. I don't believe it was ever uncovered but is suspected to be there by a historian. All remains would have vanished to time now.
Some stories have it that Joe Mulliner was hung at crowley town, (not historically accurate) but they close the gate at dusk.
Sorry I couldn't be of more help.
Jeff