what is Canjar set trigger on Sako 461 worth??

[ogre6br]

HI
Sako 461 in good condition- used but looked after in 17 Rem.

What would the fitment of a Canjar set trigger and trigger shoe add to the value of the rifle in the second hand market???

What would the trigger be worth seperate from the rifle??

What's the approx cost of another trigger to fit to the 461 to replace the Canjar if it was to be removed??

Thanks

later
P