Thinking about it... I've definitely seen that Civic before (On here), so I'm presuming that's because it was up for sale then, but wasn't it a fraction of this new asking price?
This car was listed on car and classic about a year ago for about 8 or 9k iirc. The engine bay looks well as far as the conversion goes but could definitely be tidied up a little. I wouldn't give 15k for it by any stretch but it does look very nice.