My suggestion is don't give them the check until EVERYTHING is fixed. Take it for a ride on the local roads and the interstate. Take it up to 70 mph and see how it feels. Front end work is very expensive. Test all the appliances even the heater, water heater and dash air. Feel how it stops (brake work is not cheap). Make sure the tranny shifts smooth with no slipping. Check the hoses and belts for wear or rot. Make sure you have all the old receipts for work done and parts bought so you know it was taken care of and what was done. And last but not least make sure you check out all the lights, horns and the windshield wipers.... I say all this from a $6,800 bad experience.