Thanks, Soeren, here are the updates for today:
The wooden load bed's grain is waaaay out of scale, and the diligent will consider filling it in and then using paint (oil streaked on top of acrylic) to correct, but I have let the paint do the filling-in:


After painting the wooden slats, I protected with acrylic flat. A quick coat of hairspray and paint followed that, after which I brushed away the paint under hot water with an old toothbrush:


After touching up some spots where the hairspray removed too much paint, the bed is ready to go onto the vehicle:

Here is the finished vehicle-- Berlin, 1945 after a long slog through Poland and eastern Germany:

The tarp up with stains, broken windows covered in cloth, tears and dust:


It's been fun. Thanks to Jim Starkweather for providing the build kit. Any questions??