I was merely disconnecting the cost of passage from the capital cost of the ship.
Arbitrage means the cost of 1 Hop will come down to approaching the recurrent cost of conducting plus a small profit margin.
J2 costs more in fuel and in opportunity costs for cargo foregone for a larger drive and fuel. 1Hop does not forgo any of that over a J1 drive.
That even supposes that anyone is particularly interested in travelling 10 parsecs. It seems unlikely that whatever the majority of people could want from a system so far away couldn't be obtained from at least one of the systems closer.
Imperial intelligence would pay handsomely for moving information about enemy dispositions and possibly even moving key personnel, but they have managed without before and are in any case unlikely to contract privately.
I would expect 10 parsec travel to be a niche market.