2 LT250R quads

I have a 1987 and a 1989 LT250R quad that I need to sell. Both have newer plastics, new pipes, and top ends rebuilt with about 5 rides on them. I'm located in northern CA. They're in great shape so I'm wondering about how much I can sell them for. I know I won't get back what I've paid for them. I've owed one of them for over 20 years! Super reliable, lightweight and fun to ride!