Tarraco FR widening track, 20 inch rims

Hello together, I would be interested to know if someone has already mounted aluminium wheels here in the forum with his Tarraco track extension in connection with the 20 inch FR. I think it always looks very consistent when the tyres, especially at the rear, connect flush with the wheel. What is possible? 15 mm or 20 mm per side, i.e. 30 mm or 40 mm per axle? With or without ABE? I like to use pictures. I don’t need any information about sense and nonsense. , especially on the front axle , does not have a particularly positive effect on the axle geometry . It is about the optical impression . Thanks and greeting , Jörn