Thanks guys for all the very good advice and tips. We decided and went a bought; Bunnings - Sutton Tools 10 Piece Bi-Metal General Purpose Holesaw Set $129.00
Yes - to buy individual holesaws as required is good advice except that meant they were going to be a collection of individual loose items. Buying them already packaged in a nice carry case was a our deciding factor.
Cheers 😀
