Is my rusty 68 Barracuda salvageable?

Stay focused on school first, ,,,,,, then....Like said, check out frames, and points critical where all suspension mounts. T o do an metal work you will require no doubt mig, grinder, tools, KNOWLEDGE, repop panels, sheetsteel. This would take much work, $, for anyone to get anywhere near solid again. Yes you can do it, but??????
I agree a better avenue is start with more slid car, even if it not your preferred model. IF you had this sucker blasted with soda, I bet you would cry then run... Blast some of it with sand and there would be little left!!!