Picking up my Toyo 4x5 field camera for the first time in years to shoot some personal / portfolio / art work. An opportunity popped up to shot at a particular location with particular subjects next week, so I won’t have time to run any tests, so I’m wondering if I can get some thoughts and opinions on the best ISO ratings for these two films, Kodak Portra 400 and 160. I’ll be shooting on medium wide lenses, at medium distance with minimal shift/tilt so there won’t be much need for exposure adjustment due to camera movements. Subjects will be well lit, mix of natural ambient light with some strobe, outside of a house with people placed around the house.
All my stored stock of Polaroid and Fuji FPC100 are gone or so outdated as to be useful for experimental use only so I’ll be using a solid Sekonic incidence meter and / or my Canon 5D IV or Fuji XT-3 as “digiroids” to measure exposure.

Thanks!