We have solved all but the last line of the poem, I give you title to the gold.
We know our coordinate to be married to the good map, the Military Grid Reference (MGRS) still needs some work because currently the spot is less than 5,000 foot elevation. And ff has stated before that the chest was above 5,000 foot elevation.
To proceed to the summit and solve the poem, we need to solve the 9th and final clue, I give you title to the gold.
The explanation to the final puzzle piece, the 9th clue, is in the module titled: The Grand Finale.