I know this is not the advise you want to hear, but if I had your amplifier, I would run Hybrid Audio Imagine in bi-amp mode without rears (the same that I am doing right now). You don't need the actual active crossover because the woofer does not need a low pass filter, and the tweeter needs a 2.2uF capacitor in-line. This allows to match the level of tweeters to your tastes and car acoustics using amplifier gains. If you have the ability to time align the speakers, with some practice, you could get a decent imaging with this setup, better than running passive.
Although, if your friend is not into tuning the speakers a lot, and just wants something that sounds decent out of box, maybe the Alpine Type-Rs should work fine for him. My understanding is that these are also bi-amp capable.