Yes, alas, the days of being able to buy a really cheap $30,000 section are gone - blimmin' typical given that one of the reasons we moved was because we couldn't afford a house in the UK!!
I'm hoping that I'm being pessimistic with the 20 years, but unfortunately, we don't have the house capital behind us from the UK (our salaries never went up as fast as the housing market for us to have the earnings for a mortgage, and by the time the housing market crashed, we already were heart-set on NZ, so were saving our deposit money for the move!) and as neither of us is earning (I had a job offer, but it fell through), we are eating into our deposit savings rather rapidly!
I'm hoping that once we have our foot on the ladder, we should be able to then get up to a smallholding level reasonably quickly, but I'm not going to bank on it!
Congratulations on being mortgage free - I am really impressed
I do have a hint for you - start keeping an eye on the exchange rates sooner rather than later - well before you intend to move. Then you can get a good idea of what is a "good" rate and try to jump in when the market hits a decent level - with the amount you are transferring, you might even be able to get a broker to do the market watching for you, but you will need to say what you'd like the rate to be, and it's a good idea to know what the decent levels are.
(I say this because the NZ market took a nosedive just as we were sorting out our transfer - I held off because I thought it would come up again, and now I can only dream of the rates of last August! Most of our money is still in the UK waiting for the market to come back up a little bit!)