Is this model correct based on the information provided?

My model:

Data Provided:

SunNet \begin{tabular}{|c:c|c|c|} \hline Flow & From & To & Cost \\ \hline 30.0 & 1 & 6 & $6.50 \\ \hdashline 0.0 & 1 & 7 & $7.50 \\ \hline 30.0 & 2 & 6 & $7.00 \\ \hline 10.0 & 2 & 7 & $8.00 \\ \hline 0.0 & 3 & 6 & $8.25 \\ \hdashline 25.0 & 3 & 7 & $7.45 \\ \hline 0.0 & 3 & 8 & $6.75 \\ \hline 0.0 & 4 & 7 & $7.75 \\ \hdashline 35.0 & 4 & 8 & $7.00 \\ \hline 28.0 & 5 & 7 & $7.50 \\ \hline 5.0 & 5 & 8 & $6.75 \\ \hline & & & \\ \hline \end{tabular} \begin{tabular}{|c|c|c} \hline Node & Net Flow & Supply/Demand \\ \hline 1 & -30 & -30 \\ \hline 2 & -40 & -40 \\ \cline { 2 - 3 } 3 & -25 & -25 \\ \hline 4 & -35 & -35 \\ \hline 5 & -33 & -33 \\ \hline 6 & 60 & 60 \\ \hline 7 & 63 & 70 \\ \hline 8 & 40 & 40 \\ \hline \end{tabular} SunNet \begin{tabular}{|c|c|c|c|} \hline Flow & From & To & Cost \\ \hline & 1 & 6 & $6.50 \\ \hline & 1 & 7 & $7.50 \\ \hline & 2 & 6 & $7.00 \\ \hline & 2 & 7 & $8.00 \\ \hline & 3 & 6 & $8.25 \\ \hline & 3 & 7 & $7.45 \\ \hline 3 & 8 & $6.75 \\ \hline & 4 & 7 & $7.75 \\ \hline & 4 & 8 & $7.00 \\ \hline 5 & 7 & $7.50 \\ \hline & 8 & 8 & $6.75 \\ \hline \end{tabular} \begin{tabular}{c|c|c} \hline Node & Net Flow & Supply/Demand \\ \hline 1 & -30 \\ \hline 2 & & -40 \\ 3 & & -25 \\ \hline 4 & & -35 \\ \hline 5 & -33 \\ \hline 6 & 60 \\ \hline 7 & & 70 \\ \hline 8 & & \\ \hline \end{tabular} Total Cost Region12345CapacityPineHills$6.5$7$8.25n.a.n.a.60,000Eustis$7.5$8$7.45$7.75$7.570,000Sanfordn.a.n.a.$6.75$7$6.7540,000Customers30,00040,00025,00035,00033,000 SunNet \begin{tabular}{|c:c|c|c|} \hline Flow & From & To & Cost \\ \hline 30.0 & 1 & 6 & $6.50 \\ \hdashline 0.0 & 1 & 7 & $7.50 \\ \hline 30.0 & 2 & 6 & $7.00 \\ \hline 10.0 & 2 & 7 & $8.00 \\ \hline 0.0 & 3 & 6 & $8.25 \\ \hdashline 25.0 & 3 & 7 & $7.45 \\ \hline 0.0 & 3 & 8 & $6.75 \\ \hline 0.0 & 4 & 7 & $7.75 \\ \hdashline 35.0 & 4 & 8 & $7.00 \\ \hline 28.0 & 5 & 7 & $7.50 \\ \hline 5.0 & 5 & 8 & $6.75 \\ \hline & & & \\ \hline \end{tabular} \begin{tabular}{|c|c|c} \hline Node & Net Flow & Supply/Demand \\ \hline 1 & -30 & -30 \\ \hline 2 & -40 & -40 \\ \cline { 2 - 3 } 3 & -25 & -25 \\ \hline 4 & -35 & -35 \\ \hline 5 & -33 & -33 \\ \hline 6 & 60 & 60 \\ \hline 7 & 63 & 70 \\ \hline 8 & 40 & 40 \\ \hline \end{tabular} SunNet \begin{tabular}{|c|c|c|c|} \hline Flow & From & To & Cost \\ \hline & 1 & 6 & $6.50 \\ \hline & 1 & 7 & $7.50 \\ \hline & 2 & 6 & $7.00 \\ \hline & 2 & 7 & $8.00 \\ \hline & 3 & 6 & $8.25 \\ \hline & 3 & 7 & $7.45 \\ \hline 3 & 8 & $6.75 \\ \hline & 4 & 7 & $7.75 \\ \hline & 4 & 8 & $7.00 \\ \hline 5 & 7 & $7.50 \\ \hline & 8 & 8 & $6.75 \\ \hline \end{tabular} \begin{tabular}{c|c|c} \hline Node & Net Flow & Supply/Demand \\ \hline 1 & -30 \\ \hline 2 & & -40 \\ 3 & & -25 \\ \hline 4 & & -35 \\ \hline 5 & -33 \\ \hline 6 & 60 \\ \hline 7 & & 70 \\ \hline 8 & & \\ \hline \end{tabular} Total Cost Region12345CapacityPineHills$6.5$7$8.25n.a.n.a.60,000Eustis$7.5$8$7.45$7.75$7.570,000Sanfordn.a.n.a.$6.75$7$6.7540,000Customers30,00040,00025,00035,00033,000