Oh no, sorry to hear about the oven! Not having one is a real inconvenience...been there, done that. I just did a quick Bing search on how to grill a turkey and came up with some links, maybe something here will help?
http://www.wikihow.com/Grill-Turkey...
I only do turkeys in the oven so can only think of a couple tips for you...
I wouldn't try cooking a whole turkey, especially one that large because some parts will get too well done but other parts won't be thoroughly cooked. I would cut the turkey into parts so you can control the degree of...