I can't say Im familiar with the original, but I think you've got a pretty solid arrangement here. The only thing bugging me is the guitar sample, it just seems detatched from everything else in the mix.
Aside from that, I personally like the synth lead a lot for the most part...The only thing I would change would be to *very slightly* reverb it, because when it solos near the end, it sounds rather bland being exposed to that extent. I think percussion could use some sprucing up a bit...it's a rather bland repetitive pattern, and all of the other instruments are miles ahead as far as energy.
Overall, I think you've got a great start, and I suggest you continue working on it.