Make him an offer. The worst he can do is say "no".
We had a couple of the retractables on my wife's last two pickups (a 2000 Chevy K1500 and a 2005 Tacoma). They worked well while they lasted, but basically needed repairs or replacement after about three years. We don't garage our vehicles and we do have intense sunlight at the elevation at which we live here on the border. They might last longer if you keep your truck under cover.
