727 rebuild price

So, what is a fair price for a 727 performance rebuild? I have a 727 non lockup from a 78 New Yorker w/440. I pulled everything and my a nearby dodge dealer said they could do it. Take it to them and a few weeks later they call with concern about price to rebuild. They figured $2000, with over $700 in labor. Umm... No. Called a tranny shop 200miles away and was quoted 900, 1600 with a precision inc converter. I don't need a crazy converter, all the companies I mailed requested off the shelf 10" 2500 rpm.

I wouldn't mind trying to do it myself, but I have never cracked one open.