Cheezy plastic wingtips was fairly common back then on early arfs and arf trainers. Finding replacements would just about be impossible even if you knew the exact airplane.

It will be a lot less frustrating to simply make up new tips out of some sheet.

How current are you, are you up to the task of teaching your wife? Will you be using a buddy box?. Sometimes attempting to teach those who you are close to you may find that they will be your most difficult student ever and its nothing to do with their ability.


John