I would fella, but you're 170 miles away short trip it would not be

Just get the seals and gasket.
TBH If I didnt take the manifold off NO way I could get the really stuck on ones out as you can push them out from behind.
You say loose but the seals might have perished and they are knocking distrupting the spray pattern. Either way you have to sort it.
Top tip get the right long bar hex bit and smack it hard onto the bolts if you round them? You will be in bigger trouble
