RJ_

Close enough. Colours are good and no luminance issues. I'm confident sending files to print. Working on changing labs in the next few months if the new test prints are better.

I have a new laptop for field editing and would like to get it as close as possible to my home desktop and monitor. Is this possible? What sort of result can I expect? 

Best I could do before getting stuck down a rabbit hole was to rename the internal description with my initials and then a number. This at least grouped them together. Hat tip to https://imagescience.com.au/knowledge/using-icc-output-profiles for the knowledge.

Sweet. Found them. Any way of making a folder so they group together?

My print shop has sent me four profiles to use. Two different printers, each with two different paper types. Three of the files are .ICM and one is .ICC. A quick web search says they are interchangeable. PS only sees the .ICC file. Do I simply rename the others to ICC to use them for softproofing or something else?