To me it comes down to if any rust has formed. Alot of parts are oiled as part of the assembly process as you know but there's alot of bare machined metal that ain't touched with lube even if 5qts of oil was added & it was prelubed. I would at least pull the pan & possibly the intake. My #1 Q would be was it stored in a heated facility because if not, temp changes that get the ambient temp dropped below the dew point make moisture condense & rust ferrous parts. Also another consideration would be how expensive this eng is