Which part do you think is a glitch, since I don't see anything? You need the species specific instructions, a plushie/metal/plastic kit, and an extra item.
[edit] No wait, I think I see what you mean. You first needed to give the instructions, and then he asks for one of the kits, and 2 items. And it seems like one of the items is another set of instructions? I think that's just really bad luck, since the other items are random, I believe.