After using multiple tools for a couple of hours, this is the best I could do. However I found out something very curious, given your TID/SID combo, the Espeon that is received (at least from my results) is just illegal because it results in a Female Espeon, while both Colo starters are gender locked to always be Male. I tried to give Espeon other nearby Male PIDs but they still resulted in an illegal mark.
So yeah, there's your desired TID/SID and OT, your Umbreon is Legal but Espeon is not unfortunately. Maybe someone else can take it from here and figure out what's wrong with Espeon's PID.
Recreation.gci