My 91 yo mum can't get in the bath easily so we think we should replace the bath with a large walk in shower . Has anyone had any experience of those baths with an opening door in the front and/or those shower modules claimed to be fitted in one day? I'm guessing they'll be rip-off companies and we'd be better to get a local plumber/bathroom specialist to fit a tray with a hinged glass door for easier access than a sliding one.