I just have one question; did you want to do a 727-100 or 727-200? Since I don't know which series that particular plane was, the serial number, I don't know if your plane is correct or not. The number listed, N467US, is a registration number assigned to that plane by the FAA so it may or may not be of help in this case. That all being said, if you wanted a -100, your plane appears to be correct as far as I can tell. If the plane wanted is a 200 series, the fuselage should be longer and the center engine intake elongated in height.
As far as what happened to it, I used to work at a jetliner maintenance facility contracted by UPS to do maintenance and repair on their fleet of 727s and 757s. All of the 727s I worked on had been retrofitted with a main deck cargo door after being aquired by UPS. If you want to know more about the two versions of the 727, this site will give technical info:
http://www.airliners.net/aircraft-data/stats.main?id=90
After doing a bit more research, I found your plane to be a 727-51, a 100 series. I even got lucky and found pictures of it with a couple variations of the paint scheme at
http://www.airliners.net/search/phot...gsearch=N467US
I found this short history as well:
N838N / 838 (cn 18803/137) "Mt. Mitchell Pacemaker". Touching down runway 26L from CLT. With Northwest Airlines as N467US, the famous D.B. Cooper hijacked aircraft - leapt out back door parachuting to ground w/ $. First flight was April 9, 1965. Delivery date was April 22, 1965. Other serials - N29KA with Key Airlines and Worldcorp Lsg Inc, N838N with United Technologies - test navigation equipmt, and also N467US with Key Als and Northwest Als - the D.B. Cooper airplane. Stored at GWO during February 1993. Broken-up during 1996.