I came across a really cheap really badly maintained First Act guitar a little over a year ago, and the time has come to show it some love. Filed the frets to a shine, cleaned the fretboard, routed a new body cavity to fit 2 Seymour Duncan humbucker pickups, designed a custom pickguard to go over the cavity and mount all the electronics to (a lot like a Stratocaster), took apart and polished the bridge. I'm going to refinish the body because it shows some deformities, but the neck isn't that bad. Going to replace the tuning machines because they were god awful. My question is, how do guitars like these sell? Do custom guitars (built completely from scratch) sell well, do they sell for a fair price for the builder? Is the market for this sort of thing good? Also, side question, how hard would it be to flip a well known guitar, like a cheap Epiphone or Squier? Taking a no-name guitar and modifying it so much that it can't be recognized and is basically custom is one thing, but taking a stratocaster and upgrading the electronics sounds very different. Typically I find the aforementioned guitars at prices between 150 and 200, so the profit margin here is extremely small compared to the First Act I got, which I think I bought at 30. I'm hoping if it plays and sounds great I can get at least 600 out of it.