You can buy ore from New Maxios or Port Tse for $7 or $8 each (Or $1 from Barad, but the distance mean supply/fuel consumption is something to consider)
Corvus is about 5.7 lightyears from Magec. It's something to consider if you're thinking about making the run, as it will likely take you about 3 days in hyperspace and cost you at least 240 credits worth of fuel (I don't think I've ever seen fuel costs drop below about 40 credits per unit, and it's only around that cost that the fuel costs are down around 240 credits per Hound) for each leg of the trip if using a single Hound. If you're only carrying 60 cargo units of ore, then buying at Barad for 1 credit per unit and selling at Kanta's Den for 100 credits per unit will only net you 540 credits more per load than buying somewhere in system at 10 credits and selling at Kanta's Den for 100 credits, and that difference becomes smaller if some in-system supplier sells ore more cheaply (which is normal; if one of the in-system markets has ore for 5 credits per unit, the difference is only 240 credits per load of 60 ore, and that would put the Barad-Kanta's Den trade route out of the question, as the difference only covers the fuel costs for a one-way trip and only if the fuel prices are very low). Round-trip fuel costs for the Barad-Kanta's Den route will eat up most of that difference even at 40 credits per unit of fuel, and the supply costs will eat most of the rest.
Overall, I suspect that the Barad-Kanta's Den trade route just isn't worthwhile unless it's on your way. I don't really know how long it takes to get from Kanta's Den to Port Tse, New Maxios, or Tibicena (especially since they are not separated by a constant distance), but I'm sure you can probably make at least two or three runs from any of those worlds in the time it takes you to make a single run from Barad; even if you can only make one and a half runs in the time it takes to make a single run from Barad, it still puts the Barad route way behind, as three in-system runs where you sell 60 ore for 90 credits more than you purchased it for will net you 4320 credits more than two runs where you sell 60 ore for 99 credits more than you bought it for, even before you account for the fuel and supply costs. If the ore prices at Kanta's Den are less than 100 credits per unit, the Barad route gets less attractive; if ore prices are higher than 100 credits per unit, the Barad route might be more attractive, but because the trip takes more time you run a greater risk of losing the event prices, and I don't know that the marginally greater profit before operating costs is really worth it.
In an ideal case scenario, you would be making round trips between Barad (buy ore) and Abandoned Station (deposit ore) when ore price is low - Actually I think you can afford to use a larger fleet to do so since even with 500 ore, it costs only 500 credits, not exactly big enough amount to catch attention (I believe trade volume in credits transacted is more important then the amount of commodity). After you clear out Barad of any ore, you transport everything with big freighters to Magec (legal goods here so you can even use Atlas). When you reach Magec you store your freighters and ore in a rented storage of your choice, and start doing round trips between your storage world and Kanta's Dens when the trade disruption event hit.
Of course, you also need to take the operating cost of the freighter fleet into account (supplies, fuels, possible tolls etc.). Unless you really have a lot of goods, this kind of trade is not worth it. Even then, in this case the in-system trade routes are good enough.
The reason I suggest single Hound round trip is for discretion reason - given 600 ores, it is less noticeable to other factions if you sell it 50 pieces in 12 trips than selling them all at once in 1 trips. Time is an important diluting factor to mitigate the negative impact on reputation - in Magec you have both Independent and Tri-Tachyon to deal with.
Sometimes you get better price in Tibicena IIRC, however since it's located on outer ring I usually just go to New Maxios or Port Tse since they're usually closer to Kanta's Den.