I posted a thread in reguards to a conversion kit for an MP15AC that would fit the Atlas MP15DC power chassis,and was wondering if there would be any interest in a conversion kit for an MP15AC since a plastic model is not available at the present time,also I am wondering if there would be an interest in a early version shell of the SD40-2 to fit on the current Kato SD 40-2 power chassis that is used for the mid production version.Jeff Briggs will do these two shells if there is enough interest in early 2009.I will have to get back to him on the price for the MP15AC conversion kit and the early version SD40-2 shell,and see if the SD40-2 sshell could be made to accept dynamic brakes and the Non dynamic brake options.If you are interested contact me off line at stevechurch2222@yahoo.com,and I will try and get more information for you.