There are so few pair of any Beveridge models that change hands, it is really hard to say. $5k for this model is probably a good price, but as the seller has found, probably not going to get it in a limited local market. Thus far, I've not been able to document online any actual sales. There were two sets trying to be sold on ebay for about $60k, but again, I never saw they sold. When Bev Audio was making new sets, they were marketed at $60k/pr. All of the original Beveridge speakers still produce world class reproduction (if restored) in comparison to the best speakers made today costing 10's of thousands of dollars.
I'd say if you could get them for anything under $5k, that would be considered a great price, assuming they work as they should. Personally though, I would not pay more than $3k for them as they are more problematic than the later Model 3 unless you were sure they were all working and restored properly. The 2 series used three separate panels and all the owners I have found, thus far, have at least one panel in each speaker that is dead. Plus, they have internal amps that also are a challenge to repair. Only my observation, but all of the Beveridge speaker models were in a constant state of development, so the later the model, the incremental improvement (until it reached the circuit board stat in the Model 5).
Do a search for Blue Shadow as he has a set of them he has been trying to restore for about a year now, I think. He has a thread in the tube forum that will give you some insight into repair challenges.
Having said all that, the Model 2 SW is probably the best overall sounding model Beveridge ever made. His purest model to his original design is the 2, but people ended up adding a sub (s) to their sets to bring up the bottom end like the 2 SW and although I've not heard them, I would imagine they are outstanding. As I started, finding any Beveridge is rare, so having any of them would be quite a nice addition.