CAAx and CFCA engines don't have a flange. Probably a good idea to replace the seal on the crankshaft although I didn't hear specific complaints.
Timing kit for CAAx and CFCA - 03L198119D, INA kit without pump - INA 530 0550 10, with pump: 530055032.
BEWARE: INA belts with "Made in PL" label are shit. If you get one like this, just buy a Conti belt separately (CONTITECH CT1139).
Contitech full timing kits imho are not optimal even though they cost more than INA - the bearings and pump are likely from their chinese factories (INA is slovakia).
INA full timing kit with pump is around 128 eur.