Steve, speaking for myself shooting slides, I just use an 81B warming filter (other than a UV or skylight filter). I use this for window light indoors, shade, cloudy weather, and sunlight that is often on the cool side in these parts. Sometimes, I think it would be useful to have an even warmer filter in reserve, perhaps an 81EF, but I haven't felt the outright need to get one.
I mainly shoot in natural light and I have never felt any need for a cooling filter.
I would just start with an 81B or equivalent, which may be all you need. From there, if experience shows that you need something else, you can expand.
PS. I appreciate the chart you posted above with Rollei equivalents, as I have only been able to guess those until now.
Still shooting film: Medium Format with assorted TLRs; 35mm with manual-focus Minolta SLRs and a Canonet.