Its very hard to estimate without seeing the actual house itself.
But here is a rough estimate
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Outside of House
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If the surface on the outside of the house was very rough, it would take longer than normal to paint and would consume more paint. If the house hasn't been painted before, it would also take slightly longer to paint and once again due to greater soakage, it would require more paint. For a 2 man job, you are talking roughly 4 days max.
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Inside of House
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Hard to estimate, extension with new plaster, will need sealing coat first then 2 coats on top of this. If ceilings in house aren't too bad, then 1 coat otherwise 2. woodwork is the time consuming part. this depends on what you want done, i.e. varnished/glossed etc... if the wood has been treated or does it need to be treated. Only by getting a painter to look at the house will you be able to get a true estimate of how long it would take. For a 2 man job you are talking about 8-10 days for the inside to be done to a good standard.
As for the price, i doubt €2k.