If i buy the ps3 version, will it use up the free days while waiting to transfer to the ps4 version?

What do i need to do? From my knowledge, i buy the ps3 version, register it on the site and link psn, then wait 4 the ps4 version and transfer versions threw the square site. Correct?

Can i use the acc information i used for the ps4 beta on the full ps3 version?

If so, will i be able to play my beta character on the ps3 version, then play it on the full ps4 version?