Lister is the only place which does neurosafe on the NHS as far as I know. Some other hospitals have done it as part of a trial on the NHS, but you get randomly assigned to neurosafe or not, and you won't be told which you got.
Obviously, it depends where in the prostate it's against the capsule wall, but having a consultation with a surgeon who does neurosafe is probably the best way to get an idea if it's likely to successfully save the nerves or not. Neurosafe is not a magic bullet to save nerves - it's just that they do it nerve sparing to start with, and then check for negative margins. If the margins are positive, they still have to take the nerves too.
Another option would be to consider radiotherapy - I chose it partly for this reason (I would not have been nerve sparing even at Lister which is my local prostatectomy hospital anyway). 53 would be considered to be quite young to have radiotherapy - I had it at 57, and so far (4 years later), I'm very pleased with the result on that front.