air con is easy to remove from just the bay. just remove the compressor, condensor, reciever/dryer and all pipework, then get a belt setup from a non A/C corsa and you're away.and if you can remove all those things without a grinder, you could sell them and make a few quid too.
and if you want to remove it from the interior too, just take the dash out, fit a heater box from a non A/C corsa, and Robert is your mothers brother

