Remember that disc's will also push your wheels out by 1/4 or so due to the hat thickness.
I've really never needed to adjust drum brakes. Typically once I needed to, they were better off rebuilt.
That said, import parts suck and they suck more each day. It could just be that getting a good set of wheel cylinders may be near impossible. That makes discs more attractive, since calipers are modern tech with some support..