Only boots in recovery mode with green lines glitchy screen after drop

Ok here´s the Story: I was skating with my MBP inside the case under my arm and ended up bailing, chipping my shoulder bone and making the mac fly on the ground. Got home, screen was shattered, but when I pressed in a corner I could see the OS still up and running. turned it off, ordered a new LCD, waited 2 weeks until my arm was out of the sling, replaced the screen myself. All good till there....

Problem= I am unable to boot into OSX again!!

What I tried so far=

-SMC Reset

-PRAM Reset

-Single user mode / Verbose mode / Safe boot / Select boot volume mode (None of these work!!)

What else I found out= That my heatsink on the motherboard was bent (due to the fall). So I took it apart, bended back to a flat state, cleaned and re-applied the arctic silver (I replaced MoBos before so Im used to it). Now I carefully re-assembled the mac checking every little connector and etc and everything is fine, nothing else seems broken or loose or bent.

What works= The only boot that works is recovery mode... and NO the Command+R combination does not work, as all the others don´t, what happens is I boot the mac, I get the chime, I have to wait about 45seconds to a minute until the screen flashes once and I enter recovery mode with a glitchy green filled lines screen.

*Keyboard is working!

**Booting from a USB flash disk recovery mode or from my hard drive (that has my OS) recovery mode gives me the same result.

***Didn´t tried booting from disk because I took my drive out as I use a data doubler for a seccond hard drive for storage.

Is my MoBo doomed?? Is my GPU fried?? What else is left for me to try to solve this?

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