I know how you feel - Dan the Man and I are doing a building cladding clean using wfp, tap water and TFR and I'm fitting it in with my other work and working weekends.
The longest side is 100 paces by an average of 25ft high. The shortest two sides are 65 paces x 20ft. Then there is a 40 x 20 out building, a gatehouse an airconditioning/boiler room "shed" - all clad in the same stuff.
We're currently three quarters of the way round the main building and beginning to see an end to it.
On the jubilee Monday there's me - Dan the Man, my daughter, my daughter's boyfriend all sat eating fish and chips, boiling tea on a camping stove having just completed the "long side" and I'm wondering if I've bitten off more than I can chew.
But now we're in the rhythm and can see an end to it ... and it's been useful in the heavier rain to keep me and Dan out of mischief!