Bullpup trigger group?

Hi folks, I am in the process of making a trigger group for a custom air gun. Of all the designs I’ve seen I think the matador has the simplest and most rigid looking trigger and probably a smooth one too(I’ve never seen a matador in real life).

So I came up with something that is very similar to what the matador has, I made this:

All the parts are made from K110 steel and cut to very close tolerances using CNC wire cutting technology.

Now I haven’t cut the front trigger group yet but I’ve made some drawings, and I would like very much to know what you think.

I need help figuring out where to place my spring (the blue one), should I have them as they are laid out or should I have something like the matador?