That solves the routing problem, but not the pipe size problem.
70TB over 1Gbps: 6+ days
70TB over 500Mbps: 12+ days
70TB over 100Mbps: 2+ months
70TB over 50Mbps: 4+ months
70TB over 25Mbps: 8+ months
70TB over 10Mbps: 21+ months
70TB over 5Mbps: 3 years
70TB over 1Mbps: 17 years
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70TB via mail: equivalent to 100Mbps (international) to 1Gbps+ (local) depending on distance, but only cost-effective if an equivalent connection is unavailable due to average weight (and price) of sufficient HDDs, eg, 3x18TB = ~$1200, combined weight approx 1kg.