Are you looking to buy above or below spot?
I'm fortunate enough to have dealt with some upstanding gentlemen here so far, and the deals I've made with them have been at/below spot, depending on what the individual wants for it. At that rate, I am still able to beat most shops (at least in my area), even after shipping. In one case, I believe the gentleman calculated his asking price by averaging spot for the week prior.
Thanks for reaching out, and if you want to talk things over, PM me and I'll give you my cell number.
Ken