Front end swap question? 69 to a 67-68

[67Mach1]

I have a two 69 short bed trucks. I also have a 68 long bed.

Right now the style i see most people changing their trucks to is the 67/68 front end. (when they make a change)

Now my question is this. If you were going to purchase someone elses either truck or project would it matter more (have more value) to you if the truck was a true 67/68 or if it was a 69-72 with a 67-68 front end.

Or does the look overshadow the year?

Thanks,