ghost iron dragonling

Hey guys, finally got around to making my Ghost Iron Dragonling for my 20 Twink but all the tinker's gear seem to require an item level of 38. I was able to use Relic of the Past I to get the dragonling equippable at 20 but there's no option to use them when creating the cogs... What am I...

So, i have been grinding and mining for sometime now. Managed to get the trinket and make it appropriate for my level with the relic of the past thing. But im confused, while i was on the way of crafting it, i crafted some Cogs/Sockets that needed higher ilvl gear (My trink is now ilvl19 which...