Price is fair, but you need it to be a steal if you want it sold quickly. Something around $24-25K would be more of a steal. $22K and you would need help answering the calls.
As for the painted top dropping the price, not a bit for me. I like the matching color much better and apparently so did Honda. Any of the main body painted would change things for me, but not the top. I just bought my 92 in silver partly because the top was already painted silver or I would have had to change it. I also understand that others may want black. Boring world if we were all the same.
Not sure why so many people think your clutch is almost gone. My car has 120K and quite sure the clutch is original and my mechanic and myself think it is still in good shape with many miles to go. Depends so much on how it's driven I'm guessing. I've had more than one car with over 300K on the original clutch.
Advertising only on NSXprime will not get you to the market you need. Like it or not, Ebay is the place. And the fee is only a couple dollars if there are no bids. With bids it is a flat $125 (or more if you want featured item and such, but not worth the extra in my opinion). So for basically $125 you get to have thousands of potential customers (and unfortunately a few weirdos) know your car is for sale. And you don't need a week or 10 days, you can opt for a 3 or 5 day auction and get things done now. An amazing amount of people will see your car in 3 days and no one will bid until the last 15 minutes anyway.
I have sold 2 Ferraris, 4 DeLoreans, 2 planes and even a Caterpillar track loader all on Ebay over the years and got them all moved quickly and for more money than I was asking locally. Just sold a camper last month for $1695 that I couldn't get anyone here to look at for $1000. YMMV. No I'm not a dealer, just a guy with changing taste.
Key to a good Ebay sale is lots of pictures and details. When you get questions post the replys for all the bidders to see so you don't have to keep answering the same ones over and over. Best of luck, you have a gorgeous car that you will miss more than you realize.