Here in BC we have brain dead parents that say to their kids " oh lets take the goldfish down to this lake and release them as they are too big for their jar ". It should be legal to hold all of them underwater until the bubbles stop.
I would think that any environmentally responsible person would be wacking and stacking brown trout, after all they are an introduced invasive species.
There is a pair of Patagonia Rio Gallagos for sale in the buy and sell section here. A great wader if they are your size. It does not say sold on them yet. I have the same waders and I love them.