Dennis, did you happen to see any picture (or a representational one) of Fr. Diego Cera? Before he served Las Pinas, he was assigned in my town, Mabalacat. Had he stayed longer, he would have surely made a Balacat Organ!
I used to attend the Bamboo Organ Festival in the 1990's, when they would frequently invite European period-instrument ensembles like Jordi Savall's La Capella Reial de Catalunya and Robert King's The King's Consort.
It seems that over the past decade though, there haven't been any period-instrument specialists at the Festival any longer.