Attached the rack to the top, and then painted and weathered all the baggage.
This essentially concluded the building process. Some adjustments here and there are still done, but the model is essentially ready. The smaller details will be added in the upcoming week (or two), and I will post the result. Some oil cans, gas cylinders are missing still, but I think the weathering is finished, so once they are installed, the model will be officially ready, too.
Overall I would say this is an interesting subject, a relatively well designed model, with the caveat of the assembly of the chassis, the running gear and the bonnet.