With the amount of bacta and the tanks that go with them you have on board, you should easily have enough to pay for just about everything on your list.
In order to accomplish such a high volume of sales however, X will have to get a hold of a license for medical equipment, which (rolls dice) is easily done. This ties into the IDs that X was able to procure for both Derek and Dofina. Or Darwin Gareth of Halcyon and Andura Hurn of Nemoidia Prime. The pair are refugees of the war, fleeing with what equipment they could and trying to sell it off to make a living.
Coronet MedCenter is more than happy to purchase the bacta from them at 75 credits a liter. They have more than enough tanks however, but mention that other facilities on the planet may be in need of them.
Querying this source of information, X finds that it could average 80000 credits per tank using the InterGalactic Merchandising Account System (AmaZBay).
In order to get the research and lab equipment Dofina needs, the scientific community will gladly take two of them in trade for it all. X knows that while this isn't the best deal, it is fast and efficient and less likely to draw attention.
The ship transponder is extremely easy to come by once ownership of the ship is proven, and the Venerable is now a fully registered ship, 11000 credits later.
There are plenty of droid manufacturer facilities as well as self-defense weapon yards that are more than willing to sell you what you need, if you give them a list of what you are looking for (What kind of firepower and what specific droid parts.)
The translator unit for Derek, with a DC 5 will cost 1200 credits, since X will be able to install the thing itself. The same for X's version. Both have to be unique to the droids, allowing for both of their rarities. Again, an arrangement that keeps the attention level lowered had to be made.
A fairly reliable R9-D9 AstroMech can be had for 5000 credits, it is well versed in freighter operations and can fly the ship in emergency situations. General Animatronics has a factory here on Corellia and as such, they come wholesale.
As of yet, no other particular news occurs that may affect the trio, as it seems that most of the planet is tied up with the changes being made by the Empire on their system and are concerned with the effects it will have on CorSec policy.
These same effects are being felt in darker circles, as criminals maintain a tighter hold on their assets and are careful in their dealings...
All eyes are in DRK-1X as it hovers into the smoke-filled room. It is as if all the aliens in the galaxy are represented here and even as such, the droid is an outsider. It seems at any time, a blaster could be drawn and a firefight begun. X's sensors can almost quantify the tension, similar to the thickness of the smoke.
Hovering over to a table that harbors a humanoid that X's contact said might have what it is looking for, the droid sees that the man is not alone. he is joined by two larger alien men, obviously hired muscle.
The smaller man speaks. "Don't usually trust a man that talks through machines, but these is special times, yeah?" A disgusting grunt as the man coughs up something and then spits it on the floor. "Harden says you're looking for some high-tech stuff. Mighty pricey these days. He says you got the money though. Hope you didn't knock over anyone I know for it."