<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> ... Should I cook them low at a lower temp and take them to about 150 and remove so they can be finished at a later time on the grill to crisp up the skin ... <HR></BLOCKQUOTE> Hi Bruce, I've done whole chickens on WSM, foodsaver and kept in the freezer. IMHO, if you want to try to crisp up the skin and for maximum food safety I think I would cook them in a hot WSM to 180F (or whatever temp you consider legs and thighs fully cooked at). Remove. Freeze on a tray as quick as you can. Vacuum pack with your foodsaver.
When you want to reheat them, let them thaw then grill with your sauce.
The reason I suggested fully cooking them is to ensure they get cooked. If they are not quite cooked and not quite thawed when you throw them on the grill to crisp and sauce (which might not take very long) you could end up with some meat still raw.