If possible, could you add two shards in it? Asking since, despite my IMMENSE RESPECT for Kreia, not all of use prefer to use her as a party member most of the time due to her severed hand that, despite not being helpless, severely limits the benefits that she'd otherwise gain through stacked combinations of various lightsaber crystals/part upgrades when wielding two lightsabers, whereas other Jedi-capable party members such as Mira and Atton can become a MUCH better selection if you don't mind the lessened (albeit only slightly obviously) exp gain trait that Kreia offers.
I have gotten all the parts for the honored duelist saber, but there doesn't seem to be an option to craft it for some reason. It worked well in my previous playthrough, but it's not working now
That depends on how you define compatible.
They are in compatible in the fact that if you were to install Dark Hope's HD alien skins with the K1 Alien Pack her skins will appear.
But they aren't compatible in the fact that the newly added aliens will be in the vanilla quality.
So you'll get these:
Side by side with these:
However, the installation is modular so you can chose to not install the Duros and Ithorians so you can get, for example, Echani and Devaronians but not the Duros and Ithorians.