Westwood cycles used to have a good on-line library of cue sheets, but their link doesn't seem to be working. You could call them and ask.

I've done weekend rides out from Ridgewood on Van Emburg, Werimus and Chestnut Ridge for a ways into NY and return on Saddle River Road. Didn't see much traffic.
Heading NW I've used W. Crescent, Hillside, S Central, Darlington, Campgaw, Pulis, Forest and a bunch of back roads. It was also on a weekend, and traffic was not bad.
Even though it's on the NJ bike map, avoid Franklin Ave. I've seen bikes on 202 in Mahwah but I wouldn't ride that stretch.