So, as far as the packages, they are:
'afex', 'phia', 'snow', 'nlme', 'lme4','paran', 'psych'
... as for the version number(s), well, I just had some issues yesterday with afex on a new comp (a Mac- ugh) that I was installing on; apparently, afex has juuuust been updated, and there is some hassle about dependencies with 'Hmisc' and 'viridis'. I haven't had time to look deeper into this. I think the newest afex is 0.19; the older one is 0.18, but I still wasn't getting full traction from that.
So, you can go ahead with things as are, and that should get you most of the way, if not all of the way, there on the packages.
Please search for "Example 2" and "Example 3" in the rPkgsInstall help file for examples about individualized package installation with that function, and also for the ability to specify a download site.
--pt
