K14

Hi - I am seeking advice on a bike I am to purchase very soon. The guy purchased it from a guy in France but I am told it has no paperwork. It is a Ravat from 1946. Any advice for me - will I need to seek a European Certificate of Conformity or a Mutual Recognition cert or a MSVA from VOSA etc?? Would appreciate any pointers from other guys who have Ravat125 or experience with the issue outlined in my query please - Thankyou.