Paul, if u need help making the fixtures and tables in the group stages, I have an excel sheet full of formulae that does it automatically once u enter the teams & results.
It provides a random fixture list and league table, just like football tables.
And I think last year we played each team twice, then this will also do that in a home / away sense.
Of course u would need to run it once for each group.
Lemme know
John