The Tops' 1978 At The Top is disco of the highest quality in my opinion mr. soulster, produced by Norman Harris. I love "H.E.L.P." and "This House", which I'm pretty sure has a reference to "Seven Rooms Of Gloom" in the lyrics!!!! Although not included on the set, "Put It On The News" is also wonderful.
Also, while I wouldn't consider their ABC/Dunhill debut a recreation of the classic Motown sound, it isn't that far removed. Interesting that the label were actually trying to recreate it anyway.
I had never thought about how Motown-ish "Seven Lonely Nights" is! That's why I love it SOOO much!!! :D