I believe the Heritage and Fatboy are the same but the Deuce and Standard have different rake, I think one is 31 and the others are at 33
www.harley-davidson.com has specs on all the bikes they may have the spec on the site.
Also here is a cool site for selecting setup for rake and trail to keep you safe.
Don't just build it because you think it looks cool, wrong setup can kill or hurt you, being that you asked I figure you know that already though.
http://www.rbracing-rsr.com/rakeandtrail.html