If you can find one, one of these older Schecter Banshee FR-P's are hands-down the best bang for buck shredder guitars I've ever owned. I've had this, the black quilt, and crimson red with the EMG's. I paid $499 new for the black quilt, and $499 for the red one with a Schecter molded case. These were high-end quality, and built in South Korea. The quality was on-par with Japan. Nice guitars. I sold this one for $500.
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Other shredders on the cheap, Jackson DK2's are a good bet. Come with Duncans, and I think the DK's are consistently better QC than the Charvels.
PRS SE's are nice. But, I'd look for one with upgraded pickups, or plan that expense upfront. I've not heard a G&B made pickup that didn't sound like shit.
Schecter Solo Customs are available on the cheap. Older ones come with Duncans, newer ones have their USA Pasadena/Pasadena Plus pickups that are fantastic. Top-notch hardware, South Korean quality.
If you want an LP on a budget, the ESP Skolnick models are killer guitars. First one I bought was 10lbs too, beefy necks.