PB 359 logging truck
Well, firetacoma's truck looks great, I'm a teamster by trade and have driven Pete's most of my life. The advice on painting is great, just softly clean the parts, glue em together and then prime the model, I like flat white for a primer which makes colors look better than gray, but both work great. I use a rattle can for both primer and paint, that's spray cans. Model trucks are my second love after trains. Don't be afraid of making a mistake, and when you're done you'll say, "wow, it's wasn't so bad afterall".
There's lots of trucks on the road, and all are similat, so just look around. Most logging trucks have a headache rack behind the cab with loops that are kinda heart shaped, with a seat in the middle for the trailer boom to ride in when the trailer is sitting on the rack behind the truck cab. There are a couple of logging trucks available in HO scale and you may find one at a hobbyshop to look at, or look em up on the internet for reference photos.
Good luck.