pretty sure the alt and bracket wont work. just use what ever was on your old engine, put it on the donor. the tb is different for sure, as is the maf. 97, and 98 have the cast elbow on the bracket, and the alt had a different plug on it so use your cars alt and bracket.

97 and 98 the same maf, 2000 not the same at all. swapping your tb and its sensors is all you need to do for that.