Car Storage Dilemma

[JMarsa]

So I know this guy who has been setting the stage to make major progress on his car this winter and maybe even drive it next year. He's got a detached garage with a 14'x 26' bay with tall enough ceilings to put in a lift. The garage has a second bay so there's enough room to get two cars side by side but it's really tight. Recently he get's a call from an in-law family member asking if he can store the car there this winter. In the past, they discussed buying a lift together so the project car can still be worked on and the in-law can store the car there, but since then, money has become tight for both guys. The in-law's wife won't let him keep it at their place and money is getting tight for them to keep paying storage. It's his high school car (20 years since grad) and he doesn't want to dump the car.

What should the guy do?

--JMarsa