got a kit off e-bay..
http://cgi.ebay.co.uk/ws/eBayISAPI....7755&ssPageName=ADME:B:EOIBSA:GB:1123&afsrc=1
very easy to do on the 105e...took about an hour..be sure to give the activator rod a good clean whilst you are at it.
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local