I saw it, and that fork looks to be in pretty good condition, but I absolve myself from any damage done to you or your bike . I'm just playing backseat mechanic here. You can bring it to a mechanic you trust to have him/her check it out... or a local framebuilder.

Those Nashbar carbon forks are pretty good deals, but they don't belong on a bike of this caliber. If you are going get a new fork, do right by this bike and get a high quality one and paint it if funds allow.

And 43mm of rake probably isn't a huge deal. I wouldn't go past that. I've only changed from 43 to 45 and it doesn't seem to make a difference. Others, however, said they start noticing the difference in handling at about 5mm difference. Who knows if it's all in their heads.

If you were going to go steel, a chrome or white soma fork would work too. They are around $100-$150.

What's your headtube size? I have a paint stripped ritchey steel fork lying around.