Its cool to feel the way you do.
But a body mod and a disliked tattoo can both be fixed with an angle grinder.
If we can modify a panel, Why can it not be restored.
A rusted panel can be cut and restored to look original, Why cant a modified panel?
It might take time and skill, but if you love the datsun you will do it.

Having said that - if you dont have the confidence or determination - maybe think hard about it. I personally have the thought that with the things I do, If I stuff them up, I simply learn to repair it. If you scared to go in the water and never attempt to - you never gonna know what its like.