It would be my understanding that a trigger job on a regular SKS would carry it's relative improvement over to the SGWorks bullpup kit.
In fact, since it appears there is some mechanical advantage engineered into the SGWorks bullpup trigger, it should result in a great improvement when combined with Kivaari's trigger work. I have a stock on order, but it will be a while. I am thinking about sending off the trigger group to have it sweetened up beforehand... but I might want to wait until I get the stock, so I can do a before and after comparison.