Here is a link to a supplier I use for my outboard paint projects. Your 1973 model uses a 1971-1977 Light Blue on the motor itself and 1965-1976 White on the cowl. He has your colors available but don’t know if he ships to Europe.
http://www.nymarine.ca/colours.html
Here is a picture of a restored 1973 65hp.
Bob
1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1955 Johnson QD-16
1957 Evinrude Fastwin 18
1957 Evinrude 3022
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
1982 Evinrude 25hp
“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."