I've looked in to it, in fact if I do another maverick it will be a 4 door wagon. The fox body LTD wagon roof is the best candidate IMO. Details in my head are SHO v6, 8.8 rear, jag xj6 front susp, fender cuts, 17" wheels, front valance like my 71, leave the tail panel stock and just have the rear glass lift, use Toreno GT tail light (yes I can make it fit).
Thanks here's a drawing I made a couple of years ago. One thing I would have to do on my version is the rear side windows would have to be parallel.
You never know about Tom. This thread is a couple years old but he may have been sneaking around and building his s/w without telling us. He's great at surprises. You can bet one thing...if he does it...it will be awesome!