dude thats mad.
i have just over 100 acres just out Prospect Hill, about 2 min fang from Kaipo. not too far from your good self.
but its basically scrub and trees at my place. and a few hills and valleys. which is sick in one way, cos we've basically carved a massive track thru the forrest and blackberries and all that shit that takes about 8-9 mins to get around. but i like your grassland track. i like the openness of it. full moto-x styles. get those jumps a bit bigger and you're laughin. the thing is, it seems like hard work at the time, but 1 weekend of 2 or 3 mates goin hard at the diggin and shovellin will last for a LONG time. and you'll thank yourselves for it hey.