Cheapest way is to use your Ionics pole for the easy to reach stuff. Buy an SLX35 or SLX39 for the higher stuff - you can add extensions.
As for blade-ing bottoms - opinion is divided on the matter - all the other sea captains say the way to the new world is across the Atlantic Ocean, I say just go round the Isle of Wight a few times until everyone is seasick and nobody will care.