yes, im assuming its a v6 your talking about, i'm pretty sure the looms are different you may have to get a series 1 manual loom?
Yes you can but dont forget you'll also need the other T5 manual parts such as clutch, flywheel, loom, clutch cable and tailshaft etc. Do you mean the bellhousings between the T5 and Getrag box's? If so then no they are different as the Getrag bellhousing is part of the box casing and cannot be detached like the T5. Both though have the same pattern to the back of the block.