s8 v10 valve cover gasket replacement

Bothh are seeping onto exhaust manifolds so they gotta get changed. THe one rear bolt looks like a PITA, I have to use a ratchet 1/4" wrench over a stubby hex drive t30 bit to get at it…no guarantees if it will fit once i start backing it out though…

Otherwise, is there enough room to just lift the cover up and out to replace the gasket?

Thanks,