In many cases, the most effective way to replicate or improve original equipment is through re-engineering. For mature assets delivered decades ago, original drawings are often unavailable and OEM support can be limited or impractical. Blackstone integrates field and shop metrology with in-house machine design to capture real-world geometry and develop engineered retrofit and revamp solutions. Existing equipment is evaluated against current operating conditions, then upgraded to improve performance, reliability, and manufacturability without full replacement. This approach reduces downtime, avoids extended lead times, and provides access to locally manufactured components at OEM or improved quality, while giving operators greater independence from OEM spare part constraints.