1982 gmc sierra 1500 c10 chevy chevrolet 6.2 diesel square body regular cab 2WD

GMC Sierra 1500, 2WD, long bed, 6.2 liter diesel, runs excellent, factory 4k tach, factory radio with modern conversion, vintage Timberline canopy, all interior and exterior canopy lights work, rust free body, paint is very good to excellent but with a few stone chips and scratches, engine runs perfectly (video of engine running can be sent by email), manual override for glow plugs, dual batteries, interval wipers, sliding rear window, interior wood is in very good to excellent condition.
The cylinder heads have the ASTM modification that fixes the exhaust port cracking problem that killed most of these engines.
I've owned the truck 15 years and done all the work on it myself, so I'm able to answer questions. I bought the truck with ~60k miles from the brother of the original owner. He ran a fuel oil company in Des Moines, Washington, which is where the truck was bought new. Still have a few pieces of the original paperwork.
Definitely an authentic, vintage Pacific Northwest truck. Feel free to contact me with questions.