Unfortunately buying any used car comes with the inherent risks.
I picked up my Z with only 13k on the clock, and have been lucky to avoid any issues thus far (almost 30k miles later).
I'll attempt to help you with your DRL situation.
https://conceptzperformance.com/evo-...ed_p_32202.php
Replacement LEDs (sold per bulb, not per set) for what look to be EVO-R lights you have there. There is probably somewhere else to find them cheaper/more complete, but that was the easiest to find and point you at least in the right direction to what you need as far as that item.
Shame because I need a new front bumper and really like the 15+ NISMO front end, but shelling out $1200 for the factory DRLs is not happening and it seems the decently priced alternatives don't seem to last... oh well... I really wanted that Amuse front end anyways
Best of luck! And keep us updated in an appropriate subsection here
