Hello,
I spent quite a while working in oilfields in the
Amazon. Currently I am waiting a job reassignment (and relocation.)
Toyota or Ford spare parts had to be ordered from dealers on the capital cities, which might as well be on another continent. A purchase order usually took months to arrive; aftermarket equivalents from Taiwan (yes, I remember made in Hong Kong and Made in Taiwan) had to be used in the meantime. Many an operations briefing lasted longer than usual because a replacement universal joint, sparkplug, injector, vacuum pump, you name it, had failed while the OEM part was still in transit from overseas or waiting in a city warehouse.
Every base had shops, mechanics and engineers who managed to keep equipment working while parts arrived, and a lot of ingenuity was used. I still remember the loud "weld point, QUICKLY!" or "turn that bolt, NOW!" order, usually followed by sailor like cursing, when two pieces were held together with a forklift or winch, to be re-welded or reassembled for the umpteenth time. But even those guys ran out of ideas sometimes: a consultation with local mechanics who ran barebones shops was due.
Every now and then I find myself repeating those words when working on my Cruisers.
One very reliable piece of equipment was the Detroit Diesel engines' pneumatic starter. Sometimes, on well pads 80 km from the nearest town, long after batteries had run dry, computers forced to operate under the simplest configuration and hydraulics gone haywire, you could always trust that starter to perform flawlessly when restarting the equipment.
Wood tops are still used there on 5-ton trucks that transport people between jungle towns. Some are added on cab chassis Hinos and Isuzus, while others are built complete with cab. No side windows, there is nothing between seats and the road. Forced airflow while this bus is moving helps keeping the passengers cool. By "cool" I mean 28 C; a closed cabin without air conditioning could reach 38 C or higher even when the fans were at full speed, ask me how I know. At night you had to choose between heat shock and mosquito bites; luckily air conditioned cabins become commonplace.
I guess I could talk a couple mechanics I knew (and worked with) there into moving to PNG, provided I could find them... They would feel at home in your shop, I guess.
Juan