i found a good shape b2200 for dirt cheap and apparently it leaks like a mofo from the water pump so is it easy to change the pump?
pretty easy if you arent all thumbs.
Its not too bad you do have to take the entire front of the motor and timing belt off though.
sean did a B2200 to B2600 swap, he should be ok changing waterpump. oneup is right, you do have to take the timing belt off.