Aubrey Faulkner is the obvious choice.
That way we get 3 x quicks, 1 x offie, and a highly competent leg-break googly bowler in the side to secure the ultimate bowling attack.
And with Waite and Procter to follow it doesn't matter too much that Faulkner is probably not as good as Amla et al.
1945-1977 ATG Draft: Desmond Haynes - Roy Fredericks - Rohan Kanhai - Neil Harvey - Clive Lloyd - Asif Iqbal - John Waite - Ray Lindwall - Garth McKenzie - John Snow - Derek Underwood
ATG XI: Jack Hobbs - Len Hutton - Don Bradman - Brian Lara - Graham Pollock - Gary Sobers - Alan Knott - Malcolm Marshall - Shane Warne - Dennis Lillee- Sydney Barnes