4 Speed Conversion

I live in Ontario Canada. I have a 1970 340 Automatic Duster with console. But I long for a 4 speed. Does anyone have a guesstimation of what it would cost to convert an automatic to a 4 speed. What kind of shop would be able to do this? I have the tranny, petals and drive shaft from a 1973 340 Duster I used to own. Rest her soul.
I think you're going to pay a whole crap load to have someone else do it and do it right and "care" that they did it right! This is the kind of crap that I tell people to do themselves because when inevitably it doesn't work they won't even know how to fix it. And then they have to keep taking it back till someone gets it right. When it's all really literally a complete bolt in kind of deal. Withstanding cutting that hole in the floor board. But the dog house is a perfect template to do it with. I can't remember if you said there you want to keep your console or something? I would suspect over twice what you paid for the 4 speed and all the stuff to put it in. If you want it done right with warranties and stuff like that.