Actually, don't neglect the fact that while you are picking a party of all physical attackers for oilevert, you are ALSO neglecting physical attackers to be used i the desert palace. MAKE SURE that you leave a good physical attacker behind (just one) for the desert palace. I recommend leaving freya.

Overall no matter WHAT party you choose, you will do fine. If you picked Eiko, Dagger, AND vivi, you would still be able to get past that part. Plus, having one character dedicated to throwing healing items is always nice. I recommend replacing a physical attacker with a mage that will 'heal' with items. Possibly, equip that character with 'chemist' or 'healer' so that your attacks heal the person you hit. There are many strategies! Leave Stiener in your team for oilevert though, because he is a VERY nice asset for the boss.