I have both. The 450/4 is brand new with retail receipt and the 1000/1 is a month used, but in new condition. Make an offer. The 1000/1 may be sold very soon though, I'm waiting on a response.
i've never had the 450/4 out of the box or the plastic. the 1000/1 was in a show car for about a month and is perfect, no scratches or anything. i have everything with the 450/4 and just a receipt for the 1000/1.