I don't think OD is much too easy at T2C. Put them back in raids.
Additionally, if you're not going to give us gold enhancement runes for T5 House of Rest, put gold traceries in the box instead.
If the concern is inventory space, players can use them or discard them. I'd rather have them given so I can start saving them up. We can only get 2/wk/character and we need 18 per tracery at that point. (491-499) Thats 8 runes per slot * 23 slots per set= 184 runes per LI set. That's 92 weeks/LI set from the 6man. There's no reason not to let us start saving these up now.