I try to not make any of this personal. I didn't intend that comment to sound like you don't know what you are talking about, it wasn't even aimed at you, it was more like a general comment that there is a lot more to consider when you are actually going to the practicalities of trying to sign people. However I am sorry you feel that it was so I apologise. As I said there was no intention of directing that comment at you.
Fair enough VH, and I apologise in turn if I over-reacted which I tend to do and know it
To look at your questions. It's not my job to find Spurs players. Almost never do you find me plucking names out of the air on any subject and saying we should buy 'x' or 'y'.
There are certain sites, NOT here I stress, which seem to be overrun by 'fanboys' who will say things like 'I'll jizz my pants if we buy Lamela' or whoever, and I'm thinking who's Lamela?
I'm also thinking this is a person who plays football computer games and also that I'm a grumpy 62 year old who doesn't play computer games and it takes a lot more than the prospect of some exotically-named footballer to get me to jizz my pants, I can tell you
However, for the purposes of this debate, I can say names like Vlad, 'Oldeworlde', Ilori, Rolando, cos I've read these names from 'ITK' and the like. Vlad, I looked into a bit as it looked like the famous 'done deal', and it seems he would be good for us. But I've never seen him play, it's just stats and You Tube that I'm going on.
HOWEVER, I'm 'olde school' and what I would look at are proven Prem players, eg Onohua, Micah Richards, Huth, Shawcross, to chuck some names into the mix, and no I wouldn't 'jizz my pants' over any of them.
It's just I'm more like 'Arry than AVB when it comes to looking at CBs. I'm still angry at AVB for trying to offload Daws, because he's my type of defender and player.
Regarding cost, well that's an argument that goes wider of course.
I've said time and again I don't share the 'love-in' with ENIC that many Spurs fans have, for me time and again they have held us back by refusng to spend their own money on us, and just relying on the money they receive from fans, directly, through ticket sales etc, or indirectly, through TV money, etc.
To me, clubs like Chelsea and City always blow us out of the water, because if they need players they buy them. A classic case was Cahill. Now, I understand they are financed in a different way, and I wish eNIC would move aside and we would get in a billionaire benefactor like them. Monaco are the latest to show how brilliant it can be for a club.
HOWEVER, the facts are ENIC are in charge so we look at them not fantasyland (BTW I wouldn't jizz my pants if we got took over by a billionaire benefactor, but boy would it make an old man happy

)
Surely, even if ENIC can't afford to lavish hundreds of millions on us, an extra 30-40m per year above our income wouldn't go amiss. Even if they used that money to build the training ground, our stadium etc and thus freed up valuable money for us to buy players with.
I think the post is long enough now, and I hope I've answered some questions
To a large extent it depends on what 'real world' you want to inhabit.