Not sure the Calvin owner would bite at the deal if it involved TRich. I think most of the fantasy community is now wise to his underachieving ways. Maybe try SJax? I think even a hurt SJax has more trade equity than TRich at this point. SJax and Hilton would be my opening offer, but I don't think it has a high chance of getting accepted. If the other owner rejects it, come back with SJax and either Gordon or Blackmon.
I think its a solid deal. Im trying to buy low on Megatron as well in my 2nd league. But if i were you with the depth you have at WR and SJAX and TRICH id try and upgrade your RB depth. I wasnt high on SJAX coming into this year. The combo of him being 30 and the fact The Rams rode him hard and put him away soaking wet. Not to mention his injury history.
I love 10 team leagues for the fact you can have a deep bench. But on the negative side its hard to make trades cause everyone usually has a deep bench.