Topic: Looking to trade for different versions of cards.

Hey everyone, I'm trying to make some playsets uniform and trade for copies of arts I prefer of some of the big players in my modern decks.  For each of the following, I want to trade another version of the same card (Which I'll put in parenthesis) plus some value. 

  • 4x Fire and Lightning Chain Lightnings (4x italian legends chain lightnings)

  • 2x Future Sight Grove of the Burnwillows (2x FTV: Realms Grove of the Burnwillows)

  • 1x Kamigawa Kiki-Jiki, Mirror Breaker (1x Modern Masters Kiki-Jiki, Mirror Breaker)

  • 1x Ravnica Sacred Foundry (1x Gatecrash Sacred Foundry)

  • 1x Guildpact Steam Vents (1x Return to Ravnica Steam Vents)

  • 1x Guildpact Stomping Ground (1x Gatecrash Stomping Ground)

  • 1x Modern Masters Sword of Light and Shadow (1x SP Darksteel Sword of Light and Shadow)

  • 4x Future Sight Tarmogoyf (4x Modern Masters Tarmogoyf)

  • 2x Ravnica Dark Confidant (2x Modern Masters Dark Confidant)

The additional value can be negotiated, but I likely won't be going much higher than the difference in value between the versions.