Looking at a 2011 Z71 with 129,000 miles. High miles for its age but seems to be taken care of based on the Carfax. Reg oil changes, transmission fluid changed, etc... they are asking $16,987. Also noticed on the backup camera there were no direction lines. Basically no lines to guide you in. Was this how these were? Just a camera to show you what’s behind you or is it supposed to have the lines? Buy or no buy.... thank you in advance to those that respond.