[1996 328ti]

I can understand wanting to move up to an M3. But. . .
You can usually find 4 16" 5 spoke wheels fairly cheap.
I've seen them as low as $100 for 4.

Replacing the hood roundel gotta be less than $20.00

Windshield, is that something that insurance would cover or do you have a high deductible? Bullet hole type cracks can be easily filled. Of course cracks need to be replaced. It's not worth $500 to you to get it back in shape?

I would advise replacing the roundel badge though. If I was looking at a car and saw it missing I'd figure there was a lot more wrong.