jackson guitars have great necks for shredding. jacksons almost play themselves
ps don't get a guitar with a locking system to begin with - your rh will affect the pitch too much when you are starting out e.g. you may rest against the bridge and raise the pitch. this is common when beginners get a guitar with a locking system.
ps you should know that it will take you years before you will be able to play dragonforce etc
i get lots of students who want to play this kind of stuff (guitar hero influenced) - after 6 weeks of playing, when they realise that even changing chords is a nightmare, most of them give up
i say you should think seriously about whether you want to play, or whether you would rather just be a listener - which there is no shame in being.
if your sole goal is to play dragonforce, then i'd say forget it - it won't be worth the effort, and you will waste a lot of money on lessons.
play the guitar for guitar's sake - it's all good - everything from strumming to shredding. the joy is being creative with the instrument, whether it be playing chords at 60bpm, or shredding at 180bpm.
try not to close doors on yourself.