w650gb500

Hey gang, new guy here with a few questions about a potential purchase. My fiancee's father purchased the car and now she is considering buying it from him. Its kind of a unique car and since this seems to be the place for Porsche information, I'm here to ask for your help. The car is a 2000 Carrera Cabriolet that was sent from the dealership showroom to Gemballa North America to have a whole bunch of work done to it. Here's a partial list of items added to the car: - Turbo-look GTR Conversion(all metal) - Rocker panel w/air intakes - rear fender air intakes in metal - Gemballa 3-piece Cup design wheels(18x8.5 and 18x11) - lowering springs - Gemballa Sport exhaust - Gemballa 110mm oval exhaust tips - front tower brace - door sills - steering wheel - pedal covers and a bunch of other little add-ons. The car, as it sits today, has 4025 original miles!!! It has been garaged its entire life and is as flawless as the day it came out of the showroom. The car has been dealer serviced each and every year regardless of how many miles it was driven and whether it was needed or not. I have all of the local dealer service records. I'm personally not that crazy about the car, but she really likes the look as well as how it drives. She will more than likely buy it from him when the weather finally warms up here in PA. My question for you guys is what is it worth??? Its a one-of-a-kind vehicle in perfect condition, so determining a value is going to be subjective, but I need to get some kind of idea. If she buys it, we will probably keep it forever, so reselling it isn't a consideration. let me know what you think. Thank-You for looking/reading and I look forward to reading your expertise and wisdom. Dan Pix that were taken with a $hitty camera(sorry): http://s31.photobucket.com/albums/c376/w650gb500/Porsche%20Gemballa/