if the head/headgasket is that badly damaged, id make sure the block is still square, use a stright edge along the block deck at different places and make sure there are no gaps and yes, definatly new head bolts and gaskets
most of the million vacuum lines going everywhere are for emissions/carb, which will go by-by when you fit the webbers
and the exhaust system might need some attention to keep up with you new intake and head.