Avoid that used one at GC Oxnard!! I contact them about buying it when it first popped up, and was about to close the deal when the salesman called and said they went to set it up and found a major issue with the trussrod. Said they couldn't sell it, and had to send it out to a tech for repair first. Figured someone else snatched it up or something, so I moved on and bought another one. Then, almost 2 months to the day, I got the following email:
"Hello! Not sure if you still have interest, but we just got this bass back... the repair was going to cost about 1300 bucks... so they just decided to clearance it and take a hit. It's still playable, but needs a new truss rod. We're now selling it as is for 500. Let me know if this interests you. Have a good day!"
I see they still haven't dropped the price online, but even for $500 and in need of repair, I'm not sure it'd be worth it (unless you're made of money and want to buy spare parts in the most expensive way possible). Not sure if you could call and have them honor that price or not, though, or if they managed to make any sort of repairs after I got that email.
As for your search for a new Stage II, I know they are now considered Custom Shop models and I believe are only built upon order (though a dealer could order it, of course). I thought Bass Central on here was a vendor, so I think you could place an order through them? As for finding a new one on hand and in inventory, it's doubtful. I was looking for a long time, and saw very very few new models for sale (and those that were typically were 2-3 years old, if not older, and were just leftovers). Realistically, you're only options are contact Warwick to find a dealer (or check with Bass Central or The Bass Place in AZ, as they're another Warwick vendor) and order a new one or see if they have any incoming, or buy a used one. Not sure what your experience with Warwicks is like, but there have been several changes over the years, but while some will say certain years are better than others, it's all up to the player. I personally prefer the mid-2000's models that most dislike, because I like ovangkol and thick necks. Lucky me, people don't typically seem to attach the same premium for those models as the earlier (pre-00's) or newest models, which means I get the best price and a preferred instrument!