My two cents worth...
My thought is that you can't go wrong with an Uberti pistol. Another option would be a used one but don't expect to save all that much money.
I have an ASM which is a nice pistol
As regards the Dragoon in comparison with the Walker, I am thinking you will want to consider owning both.
I used to hate the looks of the Walker and declared that I would never own one. Well you know how that goes.
Now I have decided that I don't like the looks of the Paterson and th LeMat. So I am saving my pennies.
My reading of history convinces me that most bad government results from too much government. Thomas Jefferson