So I'm trying to find a replacement fork on ebay and haven't taken the old fork off yet. It measures 6" from the crown to the top of the headset and I'm finding forks with 6.5" steerer tubes. I will probably cut them down, but just in case I can't cut enough off (run out of threading) can I put spacers on it, or would I just need to get the steerer threaded more?

BTW found a used steel fork that's not too heavy (690g), thinking about getting that instead of a carbon one for durability. Thoughts?