I've got the 450c kit. Compressor is mounted to the brake booster In The engine comp, works great for airing up, but sends a fair bit of vibes to the steering wheel and brake pedal. Not really a big deal, make sure you use thread locker tho. if you're going the tank route plan well and order any extra fittings you may need, the kit comes with everything required to set it up exactly as they do in the instructions, but if you deviate at all you'll run out of bits I had a hell of a time finding the odds and ends I needed.
good luck man!