One main difference between expensive and cheap is the attention to the setup. Electric guitars mostly have fully adjustable bridges. Easy for even the tone deaf to set up the intonation with an electronic tuner these days. You can get most necks right with the truss rod. The nuts are probably tricky, I haven't yet needed to fiddle with one, nut files sets are expensive but you can make them from cheap feeler gauges
www.tdpri.com/threads/nut-files-from-a-feeler-gauge.65805/ or grinding back a cheap set of mini files. I figure you'd put a capo behind the first fret, see it plays OK, measure the gap below the string to the 2nd fret, then take off the capo and file the nut down to the get same gap between strings and the first fret ?
I've got a Yamaha pacifica, finally got sick of the action and burrowed into the truss rod. It wasn't even finger tight! Straightened the neck, made a world of a difference.