Roadrunner Trailer 21 Any One Know About Fixing Up A 1965 Roadrunner Trailer?

Any one know about fixing up a 1965 roadrunner trailer? - roadrunner trailer 21

I bought a trailer in 1965, wants to fix, but can not always find things from him, or people who have previously set to buy. I do not even know that the production positively. To ensure that all information that would be great
Thanks
It is 1965, a Road Runner thats all I know for sure lol