Good era for Warwicks if you like the neck profile from that time of course.
£1500 is very top end, as wArwickhunt said- anyone would be lucky to sell one for that, but it's retail so maybe that evens the price out.
Unless you know you like them is suggest you try a few Warwicks from different eras to get a feel for them.
It may take a while to find 2 from the same era to compare as they aren't the most common!
My Stage 1 custom shop is anything but twangy, it has a 'Warwick' sound and harmonics everywhere.