Hotpoint wma 58n door seal?

Hi there, I have a damaged door seal for the above appliance and wish to replace it.I have just been laid off work so money is a little tight at the moment, otherwise I would pay the pro's to fix it like I have in the past. Anyway ,I'm a time served motor mechanic so I'm fairly good with my hands. I'm going to purchase a genuine hotpoint door seal and try fit it myself. Is it difficult ?,any tips would be much appreciated, thanks in anticipation, Kev