#1
How much does it cost for someone to install a set of EMG's for me, or is it so simple i could do it myself?
#2
Can you solder? if so then you can do it yourself.

We are not the ones installing them for you. If you want to get an estimate, call the place you would have them installed at and ask them. Your local shop will not honor a price that UG gives you.
Guitar:
Dean Vendetta 3 - Dave Mustaine Livewires

Amplifier
Carvin X100B - Bias Mod - Tungsol 12AX7's - JJ KT77's

I have built the most badass 212 that puts all others to shame
#3
it is pretty simple all you need is a soldering iron and some solder and the instruction that emg supply are very clear