VPL was balanced for 3200° Kelvin.
Standard Incandescent bulb, or a 3200°K LED...or Daylight with an 85B filter.
The TX and FP4 appear to be from the 1980's...the VPL slightly newer.
Edit: The pro-pack packaging from VPS & VPL, etc. from that era had Kodak's tested EI printed on it...without that info, you'll need to test.
I have some expired VHC (Vericolor High Contrast) from 1990, box speed 100, that had the tested EI of 25 printed on the pro-pack packaging...I overlooked it, and seriously underexposed a roll or two before remembering to look there.