The M5000 is the love child of the MKII and the MKV. Bill Rudloff In a message dated 7/26/10 8:03:59 PM, lsf5275@aol.com writes: Dave, I think the M5000 is what that is. In a message dated 7/26/2010 8:20:40 P.M. Eastern Daylight Time, djacques@csulb.In a messag What would it cost to build a Mark II today? And how many units would you have to sell to start making a profit?