you should probably find out how much the building levy is in your county, it can vary hugely from one county to another. i.e. i think for instance in Kildare it is really high and can be a substantial part of your budget.
water will cost approx 2k - depends on whether road to be opened and all that
esb - about 1700 + - i think this is a set amount
kitchen - probably about 6-7k minimum for an ordinary sort of kitchen
furniture - who knows ? you can buy a bed for 100 or 5000 if you want !
landscaping - impossible to say without size of area, whether you are fencing, hedging, paving, tarmac, etc
floors - carpet, tiles, cheap laminate, expensive oak ? , vinyl - you can do it cheaply and it will be fine or you can go top spec but prob wise not to go too mad ! - you have to live as well !
Building a house is one of those things you can get carried away with by overspending very easily (ah, sure we're only going to be doing this once !) - lets go with the oak stairs, the oak skirtings and doors, the 30k kitchen, the 2k fridge freezer, lets put in Andersens windows, geothermal heating, loads of solar panels, vaccum systems, high tech security and entertainment set ups and it goes on and on.
I know a guy who has done all this and now he has no job and none in sight either - he literally hasnt got a pot to p**s in. built a great looking house way over the top which is only at builders finish and he has spent 250k ! and still no where to live.