I am looking to change out the cassette and crank on a used bike I recently purchased to one that is more suitable for me.

I am looking for a 10 Speed, 11-28 Cassette, Compact Crank that is Mega Exo (or Shimano equivalent) compatible and a 10 speed chain. I am on a budget, so I am not looking for Ultegra or Dura -Ace at this point.

If anyone is interested in a trade (or partial trade), this is what I am taking off the bike:

Vision Tri Max Pro 52/38 175mm Aero Crankset
Shimano 105 5700 12-25 Cassette (10 Speed)
KMC 10 Speed Chain