Camo I write to you here, as I cannot answer the pm.
You asked me about a Ligurian list for Impetus.
Well there is not yet a specific list at the moment. I have anyway published an article in Dadi&Piombo magazine featuring also the Ligurians. Though I want to make more research they are similar to Celts, so you can use the Gallic list at the moment, but with some T with bows too. I would class them T VBU=3, I=0, D=C, VD=1 Short bow A that can be fielded as an alternative as S.