General rule of thumb, pick Voc of the panels so that however you wire them, the Voc is closer to the upper limit of the inverter's mppt operating range. Higher voltage will let you get away with smaller wire, and the mppt input is 'supposed' to be more efficient. You already have the panels, and the Voc/pv max v input, considering cold coef, would lead me to only having 2 panels in series 9 parallel strings. IIRC, the 12k has two pv inputs which is going to leave you with 4strings into one input and 5 strings into another input, but I don't really see an issue with that.
Since Vmp is around 38v, I'm thinking your going to see the mppt trying to keep the 2s panels around ~70'ish volts when making max power. My panels Vmp are 30.5v wired 3series, and when making max power the mppt likes to keep them around ~74'ish volts. With an Imp of ~10a per panel and a total amperage ~90amps, your wiring may get expensive. Two runs from pv array to mppt controller with 5strings on one side ~50amps per home run. Play around with this
Voltage Drop Calc . Generally, you want to not have more than a 3% loss and as you can see, distance matters.
YMMV and since I'm typing this at 4am, subject to err.