Hi Mate

When i bought the box it came complete with prop, gearstick , and mounting .

You will need the correct prop as the box is a lot longer and as Baz says they are quick release .

The mounting mine has ,has been made and bolts to the box and bolts through the floor of the car with polly bush mounts .

You MAY need a twin plate paddle clutch ( i did ) got it from Tony @ touring car spares ,

They are a superb box and will hold big BHP , they come as a rally box or Touring car spec so you need the correct one or the gears are all wrong , the BTCC box has much longer gears for top speeds as the rally box is built for of the line .

Prices , well you can pick up a bargain for £1500 or pay as much as 4k , depends if the seller knows what he has got

some also have a built in pump to run an oil cooler , these are worth a little more