That looks very similar to my build! Mine started in 2007 and I finally have it in for paint! Upholstery, new bumpers, carpet and spoilers are ready for her return!
Looks like your Duster is coming along faster than my Duster project! I hope to have a painted shell back by the end of the year but I am not going to hold my breath!! Right now the main focus is getting the Charger back together since the guy working on it actually gets things done!