Back in 2013 when Alex de Grassi and I covered Porcelain Heart by Opeth at the Soper Reese Theatre in Lakeport CA. We were only able to rehearse this song a few times together(a few slip ups on my part) but it turned out to be a decent Fingerstyle arrangement i think. Alex was using his 18 string Sympitar; it has 12 strings under the fret-board and creates a lot of sustain and resonates the fretted notes(so i think I'm explaining it correctly). Alex is a Grammy nominated recording artist/Fingerstyle Guitarist, his discography includes 18 plus albums and collaborations. More information at www.degrassi.com
https://www.travisrinker.com/
https://travisrinker.bandcamp.com/