Thanks Zaned, that linked review was pretty useful.
The reason I'd asked about wiring is that I'd come across discussion about the fifties while I was just generally reading the site, wasn't sure of the reasoning though; hence the ask!
Can anybody advise what I need to order (the 20 questions you get at check out is a little off putting... :D ).
TBH I'd prefer to get a luthier do the work (esp as it needs the nut looked at) but where I live its a bit of guys who work in shops rather than bonefide luthiers (if you get my drift). Yeah they can do the job, but they put a little bit of superficial damage on my strat changing the wired guards so I'm not 100% happy about that route a second time. I'm happy to take 'ownership' of any damage I might do though...