Thanks for the replies. I did eventually go for the Ocean Safety 6 man cannister which I fitted horizontally on the Portside pushpit in a cradle using a combination of 2 qty jubilee clips for the top rail and the brackets supplied with the cradle to fix the wooden spacer which I may or may not replace with a plated one at a later date. I’ve used a spacer(approx 50mm to provide clearance for the back stay tensioner. Someone wrote on a blog concern about the strain of approx 43kg on the pushput but the only strain which I have noticed was lifting it into place, but I got someone to assist me so no back strained or dislocated. I went for the 6 man in case we decide to go for coding at a later stage.