Wilcox and gibb needles and nut found!
So I got the nut for the chain stitch autotensioner machine from sew Europe ...it is slightly smaller in length than the original but fits the treads perfectly ...
The right needles I found from " treadle lady" shop on etsy. They are a perfect match.
I also got some lockstitch vintage needles they are schmetz system 75 starke 90. I think stark means size. They are in vintage packets like paper envoleopes and the inner paper cracked so I think they're genuine vintage. If anyone has a need for these I can post them
Since I'm useless at tech I will try to post a photo of my machine with its new nutt and the smetz lockstitch needles. They are very similar to the chain stitch but a tiny bit longer.
Thanks for everyone's help and advice! Can't wait to start a project soon!