The skin is the Quad Ancient Scythe skin, so it's the rarest of the 3 possible Ancient Scythe Skins.
I was also wondering if it'd be worth more if I perfect salvaged out the shitty mods and left it just a plain Gold Ancient Scythe that would be inscribable and have no mods.
Not really rare... its just the standard gold skin of them. I usually merch these but you might be able to get a few k for it on auctions or in-game. Leave the crappy mods on it doesnt matter.