Aint No Mountain High Enough chords & tabs

The only transcriptions I could find of this song were the orig. Marvin Gaye/Tammi 
Terrell version, 
so I came up with this. (as you likely know, the Diana Ross version is a complete re-working,
almost a different song, altogether) 
I worked this out on the piano, so I don't know how that translates to guitar. 
It is not presented as a note-perfect dictation of the record, but rather as 
attempt at a faithful, 
yet playable version. Some of the chords, I know are dead wrong. 
I've taken the ball as far as I could run with it. 
Hopefully, I can incorporate any changes or suggestions y'all might offer. Cheers.

Ain't No Mountain High Enough (Ashford/Simpson) -Diana Ross version

Intro: single notes over a B bass note
       (F#-B-F#-A-B-F#-B-A-B-F#-A-B-F#)/B     Cm/Bb Cm/Bb    C/G