RE: how long would it take to fix this damage?
You can be proud if it's done well and looks pretty, for sure.
I have seen several ARF repairs that are not, and look it.
Those were the ones who were embarrased.
You need 3 colors of covering that I can see in the photo to match the old stuff.
Then there are the hardwear costs.
I would just buy a replacement fuse and call it good.
OR
Cut the tail and mount it.
There is pride in the "first kill", I promise.