In re long hauls... keep in mind that the weekly maintenance requirements (p 178) mean about a day awake every 7th day in hyper.
Using the PDF of the mapset...
The run from Anchorhead to Sutter's is 15.59 cm, and 1.8cm are 1 parsec, and Montero is 12 days per parsec. 8.66 parsecs. 104 days. If you trust MU/TH/UR or your android to do it, the commtech can be done while FTL. If you trust your android to do it, the heavy machinery roll can be done while in FTL, too. Given the lack of androids¹, it's quite likely they drop out for 2-3 shifts a week, for 110½ to 113¾ days. Not a horribly long diversion... but note also pages 42-43... the diversion is known to Wilson from the get go. So Pollux or 1 Tau 1 Eridani are viable, as well...
Noting that 26 Draconis (where Coronus got the stuff to make the goo), is 37.6 cm so, 20 Pc. Doable in 76 years STL... but only if doing almost 90 PSL. So, they had to jump that way.
We should remember, that though our universe is disc-shaped, it isn't completely flat despite being depicted on a map. The current estimation is that our universe is some 1000 lightyears/307 parsecs thick,
In English, where you've used "universe" you should instead be using "galaxy."