Mechanical Extension. Not my best idea.

[Samuel Budnyk]

OK, sorry for the poor writing and any mispellings. It was written on the iPhone. But here are my questions:
1.) Is there any cosmetic recourse for the hole drilled in my scroll?
2.) What work (that costs money :P ) is required if I remove this extension from the bass (other than having to buy another, non-extended, string)?
3.) Would your answer to the above change if I plan on having another extension (albeit NOT mechanical) put on my bass?