are side fenders still available anywhere?? like the ones he got for his alero.

I don't think so. I think that the guy who was making them stopped making stuff for Aleros. You can buy universal inserts from knightsperformance that's all I know of.

Not available pre-fabbed, but any decent body shop can put them in for you. You're probably better off doing it that way anyway, since shipping pre-fabbed parts is risky.