I would actually argue that taking the carrier is a liability, not a help.
For one thing it uses a lot of expensive fuel. A trip to Sag A* and back would cost in the neighborhood of 400 million credits worth of fuel.
When I went, mining was ultra-profitable so I paid for the trip by mining while out in the black, and when I returned I sold all the ore I had collected. I will probably not take the carrier that far again, at least not in the near future. I did stock up on some Tritium (that's what the fuel is called) in the last two weeks. That's why I was making all that money with massacre missions. I spent about 200 million for about 4000 tons. That's enough for me to take a nice long exploration trip into uncharted territory, which is what I want to do soon.
For another thing, it severely limits how fast you can travel, and since it can't jump on its own you have to be there to jump it each time. Refueling it is weird, too, you have to transfer the fuel from the carrier to your ship, then back into the carrier's fuel depot. Just an annoyance, but part of the deal.
It's just a lot more hassle to deal with bringing the carrier.
Anyway, let's look at how a trip out there in the Hauler would actually look, because plenty of people have made the trip in 30LY ships. That
used to be a decently long jump range. My T6 had only 32LY jump range when I went. It was about 750 jumps as I recall.
The thing is, although that sounds like a lot of jumps, it really isn't that much. Once you get into the rhythm of it, jump, honk, scoop, jump, honk, scoop, it takes a minute or less per jump. That's 60 jumps per hour. That's less than 14 hours for 800 jumps. Do a couple hours a day and you're there in a week. No problemo.
Of course, I never did 60 jumps per hour. I would get distracted by something I saw in a system, and go look at it. It took me much longer than a week to arrive. But I made the trip and had a great time in my little T6.