I have found a rather good site full of Tim Buckley guitar tabs & chords. It's called, quite winningly, "TIM BUCKLEY GUITAR TABS & CHORDS". I've a feeling that I may be spending some time there.
Apparently, Timbers was wont to tune his guitar down. Nothing unusual there, you may say, didn't Hendrix do that? Yes, but TB apparently ended up tuning (all) the strings down a full four frets/semitones lower (an "E" to a "C", etc). Rather unusual.
I'd probably better stop inexpertly bellowing out Buckley classics now, as it's after 11pm.