[techweenie]

Kay, I'm not sure there's any good yardstick for valuing the car because of the customization. $10K, maybe, if you like it as is, as a driver. Maybe a bit more depending on the whole package.

Be aware, the update (if done with factory parts) will have added about 100 lbs of bumper at the extreme ends of the car, so the way that stuff is mounted should be investigated. The later cars had reinforced brackets to hold the bumpers. I've seen later bumpers put on with steel straps welded directly to the tub and tearing the sheet metal... if the front tub was "clipped" with a later nose to adapt the bumper, your price for reversing the "update" just went up. A lot.

In other words, do have a knowledgeable mechanic do a pre purchase inspection if you are serious and have (him) look at how the "update" was performed.