Both of those are intended for the grom/ssr razkull - the exhaust port on those engine points straight down. The engines on the vader/boom/croms as well as the 190 point down diagonally toward the right side of the bike.
Edit:
I've
found something that I think may work, from aliexpress no less. It's cheaper than the equivalents on ebay, and they aren't on vacation for a month. I'm still at least a month away from a point where the temperature outside is warm enough for a ride, so waiting is no big deal and if anything it will teach me patience.
I thought about the drag pipes they have, but they would definitely be too loud for me and probably not have enough pipe between the exhaust port and the muffler for a warm-but-not-hot o2 sensor placement.
Nevertheless, thanks for offering your help.