That's a pretty decent replica there. Low miles, good paint, and has most of the right parts. The only things that really need changing out are the taillights and the center console, but it looks good as it is. If it's a '91 with a functioning hood scoop then it's probably a TBI Engine which generally runs better than the old carbureted models and gets better gas mileage.
One point of concern would be the steering wheel - it has a factory airbag which is unlawful to remove when it comes time to swap it out with the gullwing, so you'd have to find someone willing to do it or figure it out yourself.
Here's another decent looking exterior replica for sale in Los Angeles.
http://orangecounty.craigslist.org/cto/1665372690.html" onclick="window.open(this.href);return false;
It's a '92 which is newer. It doesn't have the correct rims, is powered by a V6, and looks like the interior is grey. But it is cheaper, and you can decide how far you want to go in making it screen-accurate.
And if you're a high-roller, you can go bid on Jay Ohrberg's SPM Replica:
http://cgi.ebay.com/ebaymotors/Replica- ... sQ5fTrucks" onclick="window.open(this.href);return false;