Ebay is a kettle of fish all of it's own, you can pay a lot or you can grab a bargain!
It's not the hardtops that's the problem to find its the hardtop plus fitting kit....Ebay tends to have a lot of car dealers that remove them and thus inflate the price, this thread for a black hardtop is both common and uncommon as the seller is a car dealer who happens to have forgotten to remove the fitting kit from the car before he sold it,
now that's uncommon the fact he removed it to re-sell is very very common. Having spoken to the seller he comes across as genuinely nice guy, he will take £300 cash. It was still available as of this afternoon.
I have been looking for less than a week and been offered 2 Hardtops for: £270 and £300 ) (Both black) but as Jim points out hardtop plus fixing kit = £600'ish that is without a respray if required or collection costs. I am colour blind so any shade is good
At the end of the day if your in no rush to buy, a bargain or the right buy for
YOU will come a long... maybe!