Bit clumsy - but you could stick it on a 1U server and co-locate for a month with rapidswitch or similiar - which would cost under £40 - you'd then have to remote access the server and upload - at 100Mbit
Not ideal... you might want to approach rapidswitch direct to see if they would upload the data for you - they have walk in facilities primarily for server maintenance but they have often been flexible - but they'd prolly want you to pay the walk in fee which I think was about £60.
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