I got a Parrish Plastics (now Smooth Line) hardtop with my TR4A when I bought it. I don't see me ever using it. I was wondering what you guys think I should sell it for. New they are $1199 from Smooth Line who apparently bought out Parrish. It has been on a car but I don't see any hardware to attach it. The plastic rear glass has some "crazing" around the edge. Headliner looks OK. Any ideas on what it might be worth?