Great looking setup. I would not use the 4 wheel setup. I have pulled a lot of trailers and the 4 wheel setup is horrible when trying to get into tight spaces. As for tyres... that's England's nomenclature. As for tires, buy the best.... You can purchase tires that won't go completely flat for 50 miles. I would carry a hydraulic jack and a spare tire. You have to be prepared for the worst. I would never go out without a spare, prepare for the worst and you will be able to handle what life throws at you. If you can afford a fast jack like a NASCAR jack, even the better. Time is money, and you can't be late for an event.