Mechanic Job in Adkins, Texas

Hot no start had four injectors put in and I paid my mechanic in advance and I can't find him he's been missing for two months but I have too good injectors that he took out on one side that need the rubber seal on top of it in an o-ring kit and I think they'll be fine also need an oil change and I think it's number four and five that need to be checked you can scan it let me know about a ballpark how much money I'm going to need cuz it's tight these days I live out by lavernia