Don't worry about the turbos on the 1.4, they have been tested ad infinitum. The turbo recall on the diesels was no big deal, and didn't cost the owners a cent anyway.
I LOVE Polos with a passion, but to pay 200k for one is plain bloody madness and falling into the trap set for you by VWSA!!
If they go "by the book" they cannot give you more than 10% on a new one, but if you are clever, you will talk them into selling you a demo with all the bells and whistles for a great deal less than 200 less 10%.
That is how I bought my last Polo, two days after it had been registered, and with 130 k's on the clock, I ended up paying the equivalent of a new one less 17% and they were still laughing, so don't let them give you any bleeding heart stories!