I have done a big 4 storey house house with most of the bottom flat in the ground - that was a work out but it can be done depending on how well the grass has grown. The power pole is the most important bit and I have a couple of attachments for digging the growth loose. Carbon poles are not too expensive if you can do a bit of diy. I have 51mm 135 degree bends, 2"-1.5" reducer and various flattened bits of both size pipe to fit those narrow gaps. I have omni pole tubes which are telescopic and don't slide back unless you are working in the rain or vac buckets of water at the end. There is also some that use the gardiners modular extensions but they are over £100 each but worth it in the long run to save the work out.