Lee .... dont do the first clean free. You will work for nothing and get alot of people having you do it once and not again.
I started 3 months ago and have built my round up to be in proffit. I use a backpack, 25L containers & 30ft pole (for my 3 storeys)
If you want to go the WFP route, invest straight into it, dont buy ladders if you want to use the WFP system... would be a waste of money.
Do you have a vehicle ? youll need one if going down the wfp route.
If you have any questions, feel free to email me.