Hi,
1) which common mode choke? I don't see any.
2) D1 is a standard silicon rectifier diode. 1N4007 is given in the datasheet. No need to calculate anything. 1N4007 is very common, no need to choose any other. If you want to choose any other then look for 1N4007 replacements. If you want to choose it from the values, then look for: I_average, I_peak, U_peak.
2) R2 is given with 1k. No need to choose any other.
2) C2 is given with 22uF/400V. No need to calculate anything.
....
Don't make it more difficult than it is...
Klaus