Do you have any pics of the Quadzilla?? That is my dream quad haha.
If you don't mind a little traveling the Callens burgh poker ride is pretty sweet, they don't allow bikes on it yet, but its about 25 miles through fields and woods, along with a few play areas and you can bring kids if you would want to. I'll post some more info if I can find it.
Red Bank is a diffrent story, thats a weekend event with the ride Saturday and a band Saturday night, but the trails a little rougher. Bikes are allowed at this one.http://http://www.redbankpark.com/RVevents.html Scroll down to September's events to get info.