Approx cost to mini tub?

Thanks for the replies. My car is completely torn down and in the bodyshop so all the interior is already removed. In fact right now the only things left on the car is the k-member, front supension and rear end so the car car roll around the shop. Still undecided on the minitub job. I still want to buy a 4 wheel disc set-up so the mini tub job would only mean I would want to buy subframe connectors and move the springs inboard.....the ole snowball keep rolling.....