The only reason I asked, is that around 2006, my dad hauled a 77 Ramcharger from Utah to here for me. An old retired Idaho Farm truck used to transport ranch hands around.
As I was getting it roadworthy, I was out in the desert north of town and wiped one of the #8 lobes. Limped it back to the highway and had a friend to it home.
Did a poor man's rebuild on it. Cam, cam bearings, main and rod bearings. (Kids, mortgage, bills, etc was all I could afford). Odometer had a little over 60k, and I knew 318s run upwards of 350k before they wear out.
Put Std bearings all around. Measured the crank bearings with plastiguage, but not the rods. Bearings on those looked barely worn.
Initial break in was fine, it ran way stronger with the lumpier cam for about 700 miles and then threw a couple rods on the freeway. Destroyed the block, crank, cam, intake, pan, and the cross-link was bent as a result.
It was a huge regret not measuring those journals. Two bearings at .003 undersized was probably all it would have taken.
I hope things turn out well with yours. And you don't end up having to ponder 'What If'...