I have 3.5m triple section ladders (trade duty) that I bought last september.
They cost £177 from Lansford, they would probably reach all the gutters you'd need (other than for 3 story houses, but I would NOT advise doing guttering at this height)
I got a pole system 3 months ago, and havent used them since I got it, so I could sell them to you if you wanted them. I used them for 6 months.
PM me if you're interested.
Whatever you get, make sure that you can seperate the sections and use them independently (with these you can) as not all 3 sec ladders do this and it is VERY important for WCing.
-Philip