I have only Provia in hand now (actually also Velvia, but this one I do not consider for this trip). I am still in the stage when I am figuring out which color films work for me and which don't. I have to get a few Astia films and compare with Provia.
I do have a lenshood. But unfortunately no orange filter, only yellow. But with a bit of luck I will have a polarizer, as my BAY I to 49mm adapter arrived yeasterday and a heliopan filter should be on its way too.
I have also an BAYI "Agfacolor" filter from Rolleiflex - it is comparable to a 81B or KR1.5 filter, but it is uncoated, so if I decide to use it - I have to be probably carefull.