Tyre question for parco Podio 7,5×17 ET45 5×112 : preferred 205/45; 215/40 or 215/45

Hi, I’m putting together winter bikes for my F57 JCW and while my rim is clear, I’m not sure which of the 3 tyre sizes is best: 205/45; 215/40 or 215/45 To the TÜV I have to stand anyway and in the ABE all the mentioned sizes. Do you have tips/recommendations? Do I have to worry more or less when registering with one of the tyres? At 205/45 the Conti TS850 costs approx. 450€ in the set. 205/40 you get the newer Conti TS860 for approx. 450€ in set at 205/45 I get the TS850 for 408€ – but only up to 210kmh (H-knowledge, however, is easy in winter) Thanks and LG, Felix