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They are easy to make up. Buy a USGI Garand-length .308 barrel and any gunsmith can spin it on properly. Midway used to sell them.
There is a risk with some Italian parts (and hopefully this is not going to become a Typo 2 thread!). The Italians shortened everything in front of the receiver ring by 1/2 inch to reuse existing rifles. Be careful what you are looking at before buying.