Anybody trade me NKOK battery operated car(s) (Viper, Vette, Mustang, Camaro, Chevelle, GTO) for these 4 Artin track pieces? The Track is 1:32 22.5 degree, I believe 5755 R3. I have 4 with all in like new condition. No problems. Better than $4.50 a piece from artinslotcars.com. I know the NKOK double packs sell for around $4.00 on Ebay. I'm open to offers.