few years ago i started dabbling a bit in the guitar repair DIY fixing of my own budget guitars since im poor.... its trial/error a bit, but its hard to permemnantly mess something up....... wiring, you just look up diagram, its straight forward... practice soldering something else before guitar, they sell DIY electronic kits that come with pcb board on ebay for like 1 or 2 dollars... its fun... dont breath in lead fumes. get extractor or run fan blowing away from you.... truss rod, play with adjustments, learn that..... some necks not savable and need new neck, blah blah, depends if you want pretty guitar or not blah blah , but yeah. working on guitars, DIY, of fixing your own guitars, or repairing (adding missing parts to broken up guitar) is fairly easy when you learn..... guitar luthier stuff is NOT easy. (fixing broken neck, fixing twisted neck, fret work, fixing broken body, making neck, making body, ) that guitar luthier stuff is basically lost art since everyone you know just buys new crap to put on guitar.... not giving advice but saying go ahead try its ok to learn if you have the time on your hand and its not alot of skill involved.