I don't know how the wrecking yards are where you are at but Explorer seats are spendy but nice. Some of the older nissan seats and supra seats where power and somewhat cheaper although a nice seat. I used the buckets and back seat out of a '89 cavilier because the high back on the rear seat fit my '48 so well. They are not power though, I had a bad experiance with power seats and fire so they where out of the question for me.

I was able to fabricate the mounts to fit the front stock holes and just put a 2" square metal plate under the rear underneath the car.

Pic is of seats before recovering has begun.