1969 Barracuda formula S 340-4 speed
Graveyard Carz had a recent episode where they took a rust free '70 Satellite 4 door floor and frame rails, from bumper to bumper, and used it as a donor to save a rusted to nothing '70 Road Runner. They put the two door roof structure skeleton onto the 4 door floor/rocker/frame rail assembly.
As far as saving that '69 yourself depends on skill level, time, money, drive and motivation. Front frame rails are not reproduced etc. Huge under taking. But that is a very rare car and looks to be high option too. High option 340 4 spd fastback like that those are rare.
Make sure you do not loose those seat medallions those are not available anywhere.