The one you're after is The Real Bahamas Vol.1. It's a gem from the start (We'll Understand it Better By and By - another Stringy quote!)to the end (Bid You Goodnight). Like the Incredibles, you've got to listen to it a couple of times to start getting it... but it is worth it, believe me!
The influence of Joseph Spences guitar and singing is probably more marked in Mike Herons early work, but you can hear echoes of the Pindar Family all over the place, especially on the albums up to and including the wonderful Wee Tam / Big Huge.

J.