Hi Aaron ,
First , you need a good form . The bow will only be as good as the form.
IMO the router method with a template is the best way to build a form. It will be square face to side and that is essential , especially on a recurve. If the form isn’t right you are near guaranteed to have limb twist.
Now with all that said, the d/r longbows give up little to recurves these days. Plus the limbs are less prone to twist, you don’t have to use a stringer, no string slap on limb, and last but not least if you’re hunting, you can stick it down in your rubber boot til a critter shows up!!
You can also put a recurve grip on them if you want that, which is what I shoot best...
As far as going to a sawmill, make sure the lumber is dry so you don’t have adhesion or air bubbles under glass.
Good luck and have fun!!