Could you not just find a spot a little off the beaten track, park you vehicle and have a wee wander, within a visual of where you parked and camp out with a tent, sleeping bag, stove and then practice getting a fire going. If you can't get a fire going during your bushcraft practice then an overnighter isn't going to be problem if kitted out properly.

For example http://goo.gl/maps/OKwI6 is about an one and half hours drive away from where I live. The only thing to worry about in these parts is the Am Fear Liath Mor coming down off the mountain