I had the same plight with a 1972 Datsun 510 wagon. Thought maybe someone would want it for the parts (glass, drive train, etc) but never had any takers. Luckily, scrap metal prices are high enough here now that the salvage yards will pick them up for free - even if they have to drive a bit. Took a few calls but they finally picked it up.
BTW, this was my daily driver for several years up until about 5 or 6 years ago. Bought it for $300 and drove it for 2 or 3 years. It was running rough at first - the carburetor body was separating - screws were about to fall out of it. I did replace the generator once - cost $30 with exchange. And had to replace the fuel tank filler hoses and clean up the wiper linkages to keep them working. Talking about cheap transportation - and kinda fun too. But a drastic change from the MB 190E that I was driving before.