I'm getting ready to blast my frame to prepare it for paint. I'm looking into buying a pressure blaster, but I'm wondering if it will be worth it. The local shop charges about $50/hr to blast and I can buy a pressure blaster for just over $100. Does anyone know about how long it takes to blast an entire frame for a Blazer? I need to decide to either do it myself or pay someone. Any comments would be appreciated. Thanks.