They do look identical to the brake connections. Can you find this bulk line at any auto parts store? It's not something I've seen before, despite spending many hours in the local parts houses.
Yeah, I've had great luck with rock auto and factory nissan parts. I have probably 20 of those Rock Auto magnets on my fridge right now! I've gone through factorynissanparts before, when I first installed my suspension lift. Rob's a great guy to deal with!
It's coming along, but actual progress out on the truck has been slow. School is kicking my arse and it's getting colder and wetter day by day. I rode my motorcycle home from class in the rain on Wednesday. 75mph out in the open drizzle, even in full jeans, leather MC jacket, scarf, winter gloves and my full face helmet, it probably took 4 hours to fully warm up when I got home!
Still, parts are en route, and with any luck I'll have a vehicle with an enclosed cabin and a heater again soon.