Just my advice, but I would stick her in the sales forum with a value of £1500 (deliberately on the higher end) or nearest offer, and see what you get. You could always put in the thread that you are after a quick sale which may encourage offers you are looking for, and if you change your mind and decide to go for the higher price then you can just edit your ad Plenty of pictures demonstrating condition etc, and it will be your husband who will need to join the forum with his own account and list the bass as you cannot list on behalf of anyone else unfortunately, even if it is your husband!
It's a specialist bass and to the right buyer £1500 would still be a very, very good price, given the £6k or so it would cost to buy one today. Warwick basses are fantastic and it is only the belief that the market is low for them that they go up for sale so cheap. Supply and demand, if people stopped selling them for silly prices the market will rise again! Needless to say, I sold (traded) my Warwick Dolphin (slightly cheaper than the Vampyre) for £1800 this year, a good bit more than you may expect with prices as they are, so demand for the newer/more specialist models is still high.
Alternatively, I'll buy it off you for £50 and a smile, can't say fairer than that