Questions re: LWB Seat Swap

[Myami]

Hey Pelicans:

I have a 71T that needs to have its original seats redone. While the seats are out of the car, I am planning to drop in a pair of temporary seats. To make sure I get a set that will bolt into my 71 without issue, I have a few questions:

1. Will SWB comfort seats (non-headrest units) bolt into my 71?

2. Will repro/aftermarket seats that bolted into a 69 912 bolt into my 71?

Thanks in advance!