That is good advice and of course I wont do it without being sure. I'm talking to FullCompass right now and they have 16 in stock. Unfortunately there are two obstacles. Firstly, will the part they state is for the Variax Bass / 600 and 700 fit into the 700 Acoustic??? and secondly they wont deliver to the UK even though have 16. They have told me that Line 6 have said "Under no circumstances"
I've just had a further chat with someone at Fullcompass and said the Variax 700 Acoustic jack plate assembly has been discontinued and the one they have is not compatible. If that's the case its a dead end, unless there is one anywhere in a Line6 draw somewhere.
The alternative would be to buy another whole guitar but I just paid £400 GBP for mine so that's not feasible. And anyway they're too rare here. They get snapped up quickly.
Thankfully I don't need to replace the socket - I just wanted to upgrade from the older type to the slightly more up to date spring load cap type, because I did it with my Electric.
Once again it raises the question, what are people going to do with their Variaxes when they stop working and cant get the parts. Very expensive cricket bat !!!