I do have both the games (as game keys) that you're looking for, just need to know whose cards you are adding with the metals.
It won't be a "fast" trade, because one of my friends that is currently offline is keeping these keys for me... i need for him to get back online in order, that should take some time.
Open to suggestions, which ones and how many were you interested in?
Edit: No worries, I'm not in a hurry. Just let me know what cards you want :).
I'm not an expert too... i will try.
The cards i could need should be your Mark of the Ninja, Half Life 2, Scribblenauts, Binding of Isaac, Portal 2 ones, that are most of them, except the Portal 2 and Half Life 2 ones, pretty cheap on the steam market, you can check it by yourself.
Anyway, i could ask... 2 Portal 2, 2 Half Life 2, and 5-6 cards between the other three game titles i named, plus the 3 refs, for the 2 games... see how it is for you.
Sorry for the delay, that works for me! Add when when you have the keys and we can trade.
Edit: Just got the games, thanks though!
Exactly as title says, if it's possible to get both for 3 refs and some cards, that would be awesome!