I'll try a clean install of technic in a folder with single word name, check if it makes a difference.
Have already tried it in standard folder once which is no spaces, but never know what'll work!
And no luck.
New log is from clean install, mod install and attempt to launch a modpack with 1(prompted by launcher to up to 3), 4, 6, 12 and 16gb of ram just for the heck of it(Got 32gb total).
Still nothing
http://pastebin.com/2p0vre35