wondered if someone could give me some advice on the bathroom

http://tinypic.com/view.php?pic=zu10nq&s=4

hole from old cistern overflow waste pipe which the plasterer informed
me i no longer needed, after plastering the walls! the hole goes right
through to a cupboard, how best to fill this??

http://tinypic.com/view.php?pic=dm8o49&s=4
http://tinypic.com/view.php?pic=20gmo05&s=4

currently just have toilet basin, removed sink and cistern, bath and
shower still in place and in use
the various pipes some i have cut off and fitted iso valves to, new
suite will be in the same position, is there anything i should do with
the pipe work before trying to fit a new suite? any ideas on boxing
in the piping? i looked into cupboards under the sink and a boxed in
toilet but the price is a lot more than a standard £200 suite.

http://tinypic.com/view.php?pic=11l08dd&s=4

removed old radiator, plan to get a towel rad, so the pipes will need
to be closer together, is this something i can do quite easily?


thanks for all comments