Well, thanks to TC Albert who provided me with detailed pictures and instructions
and to Ken for posting the Southern trigger tutorial, I finally got this trigger started.
Heres progress so far;
It doesn't show very well but the plate does have a curve to it put in with the help of a five pound hammer. It matches the lines of the stock pattern so hopefully it's going to be a fit!
I used a grinder rather than doing it the "hard" way. I can only beg forgiveness!
The stock was 3/8 X 3/8 and I wonder if it's too tall? May need to remove more stock from the channel to make it deeper. Used two cuts with a hack saw and then made a tiny cold chisel out of a scribe.
Can use all the suggestions and advice I can get on this!