how long they may take so I can time things
should I do skin side up or down
Should I foil at any point
Cook them to an internal temp of 165° regardless of how long it takes.
Give yourself 3 hours plus a 1/2 hour rest at 250°, take your internal temp for the first time after 2 hours. YMMV.
Cover with foil during the resting stage.
Chriss, hello and welcome welcomr to our world.Cliff has you covered , however , make sure the breast is dry both on and under the skin. A Compound Butter (or oil mixtuer) can be placed munder the skin and help develope the crispyness .
I would cook as stated and have a Wonderful Holiday and as usual . . .