Propole
there is obviously some miss guidance from the photos you are supplying, it really doesn't look difficult, you have seen it in the flesh so obviously you know what your talking about :

if you know how to price the job then why ask the question? get on with it, price it, clean it, whatever, theres no need for all the school yard back biting!!
there sounds like some good experienced guys on here that help people along but you feel the need to try and put them down, there is no need for it, you will just rub people up the wrong way for no real reason and you make yourself just sound like an ass, this ain't a personal attack just an observation, think before you blink springs to mind!
sounds harsh but i think its true.