What are you shooting with? Some cameras may fog your film.
You don't need the polarizer or skylight filter. The R72 will work with all the films, the red25 only with HIE. I would recommend starting with the Aura (and Rollei and SFX if you get them) to get a better handle on what infrared can do before shooting your one and only rolls of HIE and Konica.
By the way, do you know how old the HIE and Konica films are? How have they been stored (frozen)? They've both been discontinued for some time and are prone to fogging with age. I haven't had to deal with that issue yet (I have a couple of rolls of HIE left), but you may want to consider a different developer than D76 if you think you may have to deal with fog.
Digitaltruth has some good comparison articles about infrared here.
And at Squarefrog here.
And a few other links: here, here, and here.