In an earlier contribution to this discussion,
John Stumbles wrote:

Question 2

How much should this cost

Haven't a clue! Didn't you get a quote *before* proceeding?

The OP said "For various reasons this is an extra"

So it wasn't part of the *original* project. I'd still want to know how much
'extras' were going to cost before authorising them!
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Cheers,
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