I happen to know where there is a Centurion 4.0 engine in a crate that is likely to end up in a scrap heap. There is no PSRU, but everything else including turbo's, intercoolers, radiators and a complete test stand with instrumentation. Given the outrageous cost of the OEM gearbox and the "orphan" status, is this even worth grabbing for anything other than parts? In other words, is it viable to restore to a flight engine again?