I have a cc registered in 2001.
I stopped trading about 8 to 10 years ago under that cc.

I have been trading as a sole proprietor for the past 3 years.
I've grown enough to start considering going to a CC or PTY (LTD).

I know no new CC can be registered so here is the questions:

1) Can I "reopen and trade under my old cc?
2) If yes, what do I need to do to get it opened again?
3) Or is it better just to start fresh with a PTY (LTD)?
4) I have a good reputation with the sole prop. name and want to use it as a trading as name, can I do with a PTY(LTD)?