The issue is more if you can get one, than the price, and speaking of price the list is almost $5000 now!!! It is getting common for used tops to go for as much as $4000 , as certain years will not fit others. The $2500 price was what it cost from the factory , as an option, and most Dealers ( when the top was readily available ) charged around 3000-3500 to order through their Parts Department. I would suggest you check with Autoform ( site sponsor ) for one of their new models, or Jon B. at the PartsRack for a used one. Keep in mind, since the car is no longer built, the supply will continue to dwindle, and prices for factory tops will probably only escalate.
Good luck !!