The best I can tell you is to be patient. It took me a couple of years to find one for my '69...watching Ebay, going to Carlisle, Craigslist. I almost bought one at Carlisle...a vinyl covered one for $800. Two reasons why I didn't...my car didn't come with a vinyl hardtop according to the window sticker, plus I was driving a '78 Corvette and would have had no way to transport it.
Eventually, one came up on Ebay about forty miles from me...$300 with no photos of it. I talked to the seller and from his description it was in fine condition and he had no digital camera to take photos of it. I bought it and brought it home. No one else bid on it since it had no photos. It's the wrong color and has yet to get painted, but it's in beautiful condition. At some point I'll have it painted to match the car, just not in any hurry.
If you could make it to Carlisle, there will be plenty to pick from...from poor to like new with prices set accordingly, but you should find one.
You'll find one, just be patient.