Hi there!
I'll take a stab at this, although I'll probably miss some elements!
From memory when I got my rental apartment the 'costs' that went out of my pocket rightaway were
1. 10% deposit
2. An 'Arrangement' fee
The cost of the lawyers, the mortgage arrangement fee (different from the 'fee' above) with the bank of scotland, cost of the survey etc were all bundled into my mortgage amount.
now my 'situation' was a little different to most - but I hazard a guess that in 'normal' circumstances of doing the whole mortgage thing, various costs will need to be paid as and when. Stamp duty I'd have thought could be bundled into a mortgage as well, if not it'll be made clear to you when you have to pay it. I forget the 'rates' of stamp duty, from memory I 'think' the 1% threshold is at £250,000 and it's 4% of the value of properties above £250K. These figures may of course have changed so best to speak to a mortgage advisor or have a look through the various property magazines you can pick up in WHSmiths.
'Hidden' costs I'd say would amount to things like insurance policies that the lenders sometimes try to tie you into, advice is that you should shop around first to see where you get the best deal.
'Extra' costs I'd say would be things like moving costs, renovation costs you may have thought of 'since' viewing a property, getting extra keys cut etc etc. All those can add up.
Good luck !
Cheers! Dennis! West London & Slough UK!!
The £2K figure you've been given 'could' be about right. I suggest you speak to the mortgage lender to see how they operate and what conveniences they may offer.