just picked up a '64 c20

[turbostang7]

my uncle heard that i like to tinker with old cars, have owned many in the past including a 66 c10 and a 66 f100 he told me about it and said it's mine if i want it. went and looked at it and its actually in really good shape! only has 50k original miles on it! the motor needs a water pump but runs, nothing but the batery has been changed so far.
so i have a few questions, should i go ahead and mod it to make it fun to drive? or leave it original and make it to where the wife hates to drive it lol.

modding i was thinking a 6.0, 4l80e combo, 73-87 front end swap (for brakes and power steering) custom paint etc.