What's a good project car?

Hello to all...I am a teenager that is going to buy a project car pretty soon. I need some feedback on one that I should pick.


The choices are:
65-67 Mustang fastback
70-71 plymouth cuda
68-69 charger
70-71 challenger
87 buick grand national

I am a huge mopar fan but the car I get won't need too much work and I'll only do little things like body work and change the engine and transmission. I would like to keep the car original looking but also maybe give it some what of a modern look...

Thanks for the relpys