I have made Turkey jerky a number of times.
In a nut shell, I do NOT recommend using white meat. Jerky from white meat poultry is horrible. Dark meat works very well. I like turkey thighs best.
If you will be smoking it, add some cure #1 to the marinade (1/4 tsp per every 1.25 lbs of meat), and you MUST smoke/dehydrate poultry at 160° MINIMUM to ward off salmonella (which Cure #1 does not kill). So your 170° will work fine.