I'm looking into buying a used Gretsch Renown Maple kit. Is there anything I should be wary of? I believe the kit is a 2004 model, in yellow oyster pearl wrap. The kit has 8", 10",12",14" toms and a 18" x 22" bass drum. I've been told they are 6 ply shells. Any idea what the value of the kit would be? I've been trying to research gretsch kits but I don't seem to be getting too much great information, any help or insight would be greatly appreciated. Thanks.