If your engine died for the first time then better get it rebiult and source only brand new geniune parts do not go for chinese fake after market parts or generator parts as material, built type, quality, and there heat range is diffrent and engine will re sieze with in running period...
Only go for a rebuild if you have a Excellent mechnic at your disposal or if you can assemble it self by your own self ( I do it my self now) using work shop manual.
I hope it helps.