I'll try and remember the most of it, some of the things i just had lying around the garage.
1. 5m extending Harris pole, from B&Q @ £14.98
2. 10m of black fine bore hosing, from pond/hosing section of B&Q @ £5 or so.
3. 1 sprayer lance and fittings, i got this from a local garden centre/diy store. Cost roughly £12
4. connection between finebore hose and backpack assembly, i already had this from a previous thing. Its basically a push fit connector, a length of minibore hosing and a minibore connector(is it known as a rectus something or other?!)
5. various other bits and pieces like insulating tape, a couple of screws, tools like pliers, drills and files and screwdrivewrs.
For me the total bill came to around £35.
You can easily reach any 2 storey spouting, i can reach the peak of the fascia at the side of our large 2 storey house. But i am 6'4''!! but a small steps will get you the rest of the distance of you are ever stuck. You can see in picture 4 that the pole is leaning against the house fully open and is almost at the spouting already