Just my two cents worth on rebuilding aircraft: in tracking the present whereabouts of ex RCAF aircraft I have discovered that the current rebuilding industry often assembles an aircraft from pieces of several airframes, plus some new bits. The choice of identity for the resulting aircraft is fairly arbitrary.

I suspect that somebody like AST would be in a similar situation. They might receive several aircraft as basket cases, and have several former identities to choose between for the rebuilds. I suspect that their choice (or the choice of some RAF adminstrator) would probably be based on what the "new" aircraft most resembles, in terms of build standard, applicable maintenance manuals, etc.

As the rebuilders say today, the old aircraft lives on in spirit, if not in hardware.