How you can overcome the voltage drop

544 Total watts
750' run - 128 watts - #8 wire = Voltage Drop of 9.6 volts - needs 22 volt tap
500' run - 80 watts - #10 wire = Voltage Drop of 7.3 volts - needs 20 volt tap
200' run - 128 watts - #12 wire = Voltage Drop of 6.5 volts - needs 18 volt tap
400' run - 80 watts - #12 wire = Voltage Drop of 8.7 volts - needs 20 volt tap
300' run - 128 watts - #12 wire = Voltage Drop of 9.9 volts - needs 22 volt tap
Accomplished with a single Unique 1120 SS MultiMatic Transformer