Well all I know is that I have a property on that website (bit smaller than your requirements so wouldn't be on your radar), and I have dropped the price from 21.9M HUF to 18.9 HUF since putting it up for sale in the last 4 months. still no interest, so I think you are well within your rights to bid at figures 10% below the asking.
BTW, I bought in 2004 for 20M, so facing a significant loss, when taking in stamp duty, fees etc. As far as I am concerned, I am taking it on the chin and treating it as ultimatelyt a valuable learning experience for my future investment decisions. (Research meticulously, never buy because everyone else is doing it, and know that you cannot take every opportunity that becomes available, and local if possible!)
Just note that property is not a one-way bet, particularly if you do not know the area that well, have language differences and are unable to particularly trust the service providers to manage your property effectively.
For the money you are talking about, you might be better advised to stick into 2-3 managed funds?
Didn't mean to preach.....just want to make sure you are going in with your eyes open