Glad to help, orig bulbs are 194's, pretty common. The bulb holders themselves can be very frustrating to find, as there are some that are "close", BUT are wrong and dont stay in the hole properly. Make sure whichever ones you find that they confirm correct. OR if(and I suggest you do) you send your boards to Moparmike, that he may have bulb holders? I have a few but to ship just bulb holders is foolish lol.
Hmmmm I though the bulb holders might be easy to source brand new... If it's too hard, I won't bother, now that I think about it, I may be able to source them here in Oz fe the same vintage model Valiant that we had , Tha ks again