I don't know ANYTHING about the 1977 vintage, but on my 1986 440 Technium, I got a standard 130mm axle to with with my indexed 105 9-speed cassette. It could indeed have a 127 mm chain stay dimension because it's a tight fit. Incidentally, the tight fit is preferred in my case because my dropouts are HORIZTONAL (or mostly horiztonal, anyway) rather than vertical which makes quick release and wheel alignment paramount each time I removed the wheel.

By the way, I think my shifters are 10 speed because I have what I call a "ghost shift" at the top of the stack where I can index one more time with no more gear selection. I'm also using a standard 53/39 front with a 11-25 (5500, 105) rear and a long cage rear der.

Again, I don't know nearly as much as you two. I'm just trying to provide more information for discussion. Good luck.