Yeah that'd be excellent if you can find it, it'd be interesting to read Robert's words.
I especially like the idea that Robert was frogmarched into buying a guitar of other people's choosing, then got stubborn and added some cheap pickups and that was his sound, a very sound we study and analyse and try to replicate with equipment far more advanced.
It's also also quite funny how we spend cash on vintage guitars that, at the time, would've been equated to the same starter type guitars we ignore when picking out the next purchase.
Then again, I did read recently that Robert used something like 12 different choruses when recording 'A Forest', so who knows?