funny you should ask that question today, last night I rang an uncle of mine based in Mullingar, the very same question, he's a painter, he said to let him know when we get the keys and he'd sort it out plus the paint.
Info provided after further digging, paint for 3 bed semi, if new, would cost approx 350 for him to buy, including for skirting and things around doors. He said that if he was to charge commercial prices that would need two people for a week.. approx. cost would therefore for whole house including paint about 1700 Euro, nearly fell off chair.
Lucky us though said he'd do it for paint and little extra to pay second person, oh yeh, I assume dinner every day is included too. Thought it was very nice of hime, best of luck