Well, since you've moved away from tvp based jerky to avoid the tvp, you're in for a real treat with dehydrated tempeh! It makes the absolute best jerky.
Just dehydrate it just "this side" of dry, and it's chewy, and way more filling. This stuff got me off the mountain alive on my last trip out.
Here's my tip: Marinade, then dehydrate.
This is my recipe (no exacts, all guestimates) for tempeh bacon, which tastes awesome dehydrated as jerky, thrown into the water for soups, or rehydrated and fried in oil/butter for facon.
1/2c rice vinegar
2 Tbps liquid smoke extract
1 Tbps molasses or brown sugar
1 clove garlic minced
a dash of any robust flavored oil, like EVOO, toasted sesame, etc.
1-2Tbps something spicy, like Sriracha or just cayenne
mix that up, slice the tempeh 1/4" thick or however you like it, marinade for 1+ days, drain, dehydrate.
Easy peasy, worth it's weight in gold.