Back from the dead bump. Better to revive than to ask the same damn question again.
I found an answer but not on t4r.org. There's a build thread of a chop top 3rd gen over on TTORA where he mentions WRX seats for the rear but definitely installs other racing seats instead.
Chopped top - TTORA Forum
One of my ideas (and it might just be stupid) is to look at minivan seats as they fold down to the front to allow you to use the expanded cargo area idea rather than having a measly 32" (give or take) for cargo.
Anyone care to chime in on this? I do not own a minivan and haven't ridden in one recently so I know little of the height of those seats or how tall the seats are etc. The idea just occurred to me.