I am
the worst person I'm sorry
I just love my baby so much ;(
I usually just search for the kit and the item
I've done that before with similar things but unfortunately very few people actually put the corresponding item in their trade when it comes to Killstreak Kits, especially since it appears most sellers are selling them in bulk and need every trade slot to put a kit into
Like there isn't a single listing when I do Sco-Res + Killstreak Kit, it's easy enough to find on the Steam Market of course but I don't always have marketable things to sell or want to put money in my wallet