VMO340's comments are spot on.
If I might add my own emphasis, that the requirement for a sponsor is key. You can't simply complete the process on your own initiative, you effectively need to have the job before you can start the conversion process.
I have heard of validations being issued for one-off ferry flights, at delivery. They are not issued for commercial/private flights - and they will not issue waivers/validations because it is convenient, will save money, or seems like a good idea. A very conservative organisation, the HKCAD.
They are pretty conservative on logbook requirements too. Hardcopy only, electronic copies are not acceptable.
Rotsa ruck!