I've already done this with one rad but have got three more to do. The brackets were quite substantial so adjusting them to desired distance was very hard as I am not an engineer! As far as getting a roller down the back - if you cant see whats there it wont really matter - or at least not until...
Does anyone know where to get rad brackets which keep the rad close to the wall say about a 20mm gap? I'm looking to replace single panel rads with double panel single convector but don't want to move any pipework or drain the system. Standard ones that come with a new rad are not close enough...