Hi everyone just found this site, I have a 05 2500hd gmc with a 6.0 gas motor with 197,000 miles one it, lost the oil pump so should I rebuild if possible , I can't find any low mileage 6.0 liter motors around but found several 5.3 of the same year as mine for only 500 dollars will it work without spending a fortune on making it work?