I used to have their first album - on cassette tape so I no longer have it after I outed all my tapes. Get It On was the first song I ever heard by them back in the 80's, it immediately reminded me of Zeppelin, from the Page-esque riffs to the Plant-alike vocals
I also have the debut KINGDOM COME album and what I remember about its pretty good.Will have to give it a spin havent played it in years. Yes it did get a slating by some of the press and LedZep purists in its day , but as you say their not the 1st band to be inspired by the classic sounds of Led Zeppelin. Anyone remember Michael Des Barres brilliant band DETECTIVE? , even NWOBHM heros DIAMOND HEAD were compared to Plant,Page and the boys.
Ik know their first few albums. They are heavily influenced by Zep but not in an irritant way. For some strange reason I never bought any album. Here's another good song of the debut.
Pushin' Hard