Sigma 50 + 85 1.8 vs. 50 1.8 II + 135L?

I'm debating between these two duos.  Cost is a big factor, otherwise I'd go with the Sigma 50 + 135L.  I currently have the Sigma 50 1.4 and Canon 85 1.8.  Both are good lenses but I feel they are somewhat redundant most of the time.  The only way I could afford the 135L now is if I sell both and I could squeeze a Nifty Fifty in the budget as well.

Thoughts on selling two good lenses for one great lens and a cheapo?