Home inspection questions.

[th3w01f]

We're getting ready to make an offer on the house in Elizabeth and I have some questions about getting it inspected.

We've bought several houses in the city and it's pretty straight forward but I'm not entirely sure for a rural property.

Here's what I think I need inspected, does anyone have an idea on cost for each and would the same people do multiple inspections or should I expect specialists for the well and septic? Anything I'm missing, any other ideas, details or experiences?

General inspection - basically what we usually have done
Roof - I'd usually expect the general inspector to catch roofing issues but since the roof is 10 years old I want to make sure there are no issues so I'm thinking of having a roofing company I trust also inspect the roof.
Well - What all needs to be looked at? GPH, bacteria, etc???
Septic - No idea at all here

Survey - We're saving this till we're a bit further since I understand it is very expensive. We found the original survey done before the construction so I'm contacting that company to see if they can update it. I mainly want to make sure the fencing that was added in 2012 is actually along the property lines. Open to any advice here too.

If anyone here does these kinds of inspections please let me know.

Thanks in advance.