My '67 has the standard lo-back buckets and I'd like to upgrade to either hi-back buckets or buckets with a headrest. There's someone near here who's got a pair of '72 Cutlass buckets with headrests that I'm looking at (as well as a few others), so I have a few questions. I'm not particularly interested in keeping my car 100% original, I'm just exploring my options.

1. Can the '72 headrests be adapted to my '67 seats?
2. If not, can I use the '72 seat frames with '67 foam and covers?
3. Will the '72 seat backs fit the '67 lowers (or be adapted to do so)?