I have an Ibanez rg550 I bought in 1987 and I took it to a guitar shop (Peekamoose in NYC) to get an estimate, and they said it would cost $677 to get it playing like new. The frets need leveling, cracks need glueing and screw holes need reinforcing. I am thinking that for a couple hundred more dollars, I could get a decent new guitar. They told me that my rg550 would work better than a new guitar and be more responsive after they fix it. How much would I have to spend to get a new guitar that is comparable to an old but repaired rg550?