There's got to be some middle ground between every reactor in the country being absolutely bespoke and on the other hand trying to build them in a factory like modular housing.

IIRC one of the big differences/problems is that every one of them have completely different control rooms and control systems. To the point that you cannot train on one reactor and walk into another and operate it. If we at least standardized that side of things, the cost of operations would surely come down

I also question (and happy to be enlightened about) how much the local project needs some massive change. That a pipe might need to be a few hundred yards longer to reach the river surely isn't so consequential that you can't reuse designs

These things are built on huge sites that could be completely leveled and turned into identical square clean pieces of dirt with massive empty land around them How much variation can there possibly be that can't be handled outside of the critical reactor design area