That's a beautiful Aussie W-Star you have there Spitfire! I love building trucks as well and have three trucks that are in progress. I really like the look of Australian trucks and want to add a model of one to my collection. If you want to get a Truck GB going in the near future, I'll hold off starting my Revell Germany T-900 "Australia" until then. So count me in.
Yes, trucks are a somewhat more difficult build. Keeping the frame straight and getting all ten tires to touch the ground is not always an easy task! Also, working with gloss paints is not as easy as flats. To top it off, in my area, Italeri truck kits start at C$65-70. So they can be hard on the wallet as well.