69 Dart GTS

I own an original #s matching 69 swinger. Nice car everything rebuilt but needing a complete body resto. This is where the prediciment lies. I know it will cost close to $20,000 for a rotissoire resto as canadian cars melted away with salt. Im attached to car and have owned since 1981 when resto was done.Body is still nice as sheetmetal was replaced with nos fenders and factory quarter.Needs floor pans and rear rails to be perfect.Its probably cheaper to find a done GTS which is what Id really like to find.One thats already done and real nice. Im fussy.What are they worth as I dont see many up here at all?