I'm bidding a job that requires removing vinyl siding from a 2600 ft2 home with original Doug Fir siding (looks like shiplap?). I believe the vinyl was on there for around 10 years. What should I take into consideration making this quote? I've only been painting for 3 years and have never removed vinyl siding. Looks easy, but I'm worried about what might await me underneath. Homeowner removed one side (north) of the home already and it looks like the siding is in fine shape, but would there possibly be rot on the backside that I can't see or feel by pressing on it? I know it may be likely that the west and south sides are in worse shape. I'm also wondering how to address the large gaps between siding. I know I shouldn't caulk all the gaps in siding to allow for ventilation, but would putting backing rod/caulking the biggest ugliest gaps for aesthetic reasons be an OK move? leaving the smaller ones? Any tips and considerations that would go into making this quote would be appreciated!