Got One. . . Love it!
I own a Springfield Trophy Match .45 Longslide and love it. I wanted a Longslide .45 and Springfield has the most gun for the money. I paid $1099 NIB and have added a Wilson ambi-thumb safety, two Wilson mags, and have had the gun finished in Black-T. It will be with me until I die (hopefully a long time from now)!
The price for the weapon you describe seems a bit low, depending on the year.
Mine came with the S&A magwell and the new Integrated Locking System along with all of the 2001 "Loaded" Features.
Check and see if the one offered is, indeed, the trophy match and find out if it is one of the newer or older models. The newer ones come with many of the features I would have added down the line anyway. I figured, why not do it all at once?
I'm glad I did!