too bad you couldn't scrounge up a set of double triggers to adapt. very cool project
you would probably need some mighty skinny fingers with that triggergaurd & double sets. i have two rifle with dst's on normal gaurds & they are a tight fit, i also have a dst on a springfield 1903 that is almost to tight. what would probably look good & still fit in the gaurd would be to weld the lower section of a sxs or o/u shotgun trigger to the timneys trigger arm. you would have the look of a single set trigger & still be able keep the adjustable timney