when available , i like the dual actinic and dual day light bulbs. that would be equal portions of 420,460,10k,6700k. which looks very balanced and pleasing. if you want the colors to be deeper,maybe flouresce a little more ,dont mind slightly dimmer lighting and dont need the extra light for some high light demanding corals then you could do 2 50/50 and 2 dual actinics. this is a slightly blue flavored look but very flattering and the colors seem to look better. but again it is a little dimmer than the standard setup.
i am getting some bulbs in stock by friday or monday. i can do catalina bulbs for $15 plus shipping. unfortunatley all im getting in for your setup is 10ks, 6700ks,420s,460s,and 50/50s. ( not really any combo bulbs) and the square pin config im getting 460s and 10ks.
hope this helps, dave