Best Way??

Guys,

We are starting to go off track here, Please bear with me, OK. :B

Here is the MS calculator I am using with the following spec's,
for 4-Canadin CS6P-220w panels, see info here:

http://98.115.2.6/en/strings/calc.php?viewdata=1&app=yes&mode=&ModInput=Manufacturer&manufacturer=89&model=CS6P-220&ratedPower=&NOCT=&Voc=&TCVoc=&Vmp=&TCVmp=&Isc=&TCIsc=&Imp=&TCImp=&product=23&Vmin=11.5&Tmin=-20&TminUnits=1&Vmax=15.5&Tmax=100&TmaxUnits=1

Min/max battery voltage = 11.5/min and 15.5/max
Low Temp range = -20*F
High Temp range= 100*F

Per the MS calculator,
I need to have 2 modules in series per string and 2 strings in parallel, with the following spec's noted,
880watts, Optimal configuration
Max Voc=87.00>150.0v = Vin Max
Min Vmp=51.04>15.5v = Vb Max
Max Vmp=64.37v

This is the way I'll wire these panels up,as indicated above.

I know,I need some fuses on the panel wiring, Where should I put the 15a fuses/holders?

Before the series/parallel junctions or at the wiring ends at the buss bars junction?

Tia,
Don