Dave thats awesome! Hope you find the time to post up pictures soon!
harimauhk, I can't comment on Moro agricultural blades specifically, but don't the Visayan islands have their own barong which (at least today's examples) seem a lot more agricultural? They look almost like chubby garabs with a little more weight forward, but the barong's leaf-shape is present...

or maybe I am just getting confused..