Jeep high back buckets or A100 van seats?

That was my thought process as well. The 70's A body buckets are a high back of sorts, no?

Unless it`s a `68 Super Stock car or clone a `70 up needs high back seats and I think the Jeep seats should work well.
Not the greatest setup but have you thought about these? -
http://www.summitracing.com/parts/sum-g1151/overview/