GG1 4877: Indeed, it must be a late model GP7.
Rich, right again! GP7, GP9, SD7, SD9, etc., and the Dash 2 series is a geep of another color and no way will I ever pay so much as $1 for any What If locomotive, however, to quote the onetime Model Railroader slogan: "Model Railroading is Fun!" Model railroading remains a hobby where Democracy and Freedom still rings!
Do it YOUR way and have FUN FUN FUN just like a runaway loose caboose on a down hill run.