Need Some Stereo System Opinions

I currently have two "12 Kicker CVRS, Dual voice coils, 800 watts RMS. Right now I have an old junky Jensen LXA300 amp, I've had the amp for a few years (only paid $20 so I couldn't pass it up) and I had the amp powered to my old set of subs, and now I have them powering the CVRS for a while now. I know that amp is hurting the subs, and the CVRS are power hungry, which is why I'm upgrading. I'm not doing competitions, or trying to hit a certain DB. Just for daily driving. I found a JBL GTO12001.1 amp. Rated 787 wrms at a 4ohm load. Would that amp be good enough for it? Or does anyone know a perfect amp for the CVRS to get the best sound out of them?

Also, what kind of awg wire would I want? 0/1 awg or 4awg? Also, what's the best size speaker wire to get? I heard the bigger the better, but I just need a second opinion from someone who knows alot.

Next, for my mids and highs, I was thinking about getting Infinity Kappa door speakers (haven't check to see what size yet) and power those to maybe a Alpjne 50watt amp, 4 channel incase I ever want to upgrade the rear speakers. Would that be a good setup there or does anyone also know something better?

Last but not least, since I'm upgrading everything, I figured I'd go for a new headunit. Right now mine is a Panasonic DP202 which is getting to it's "death". The "skip" button is jammed and sometimes it'll skip through the cd or stations and it's gets annoying after a while. I was thinking getting something on the higher level, like an Alpine 9830. I was told that's a great hu. What does anyone think of those?

Sorry for all the questions and long post, but i'm trying to get the best sound out for a daily driver. Money isn't an issues, but I don't want to spend "too" much. From what I have now, do you think that'll be good enough? Just need a second opinion everyone. I wanna make sure I have it correct before I go spending money and something doesn't work out right. Any advice will be glady appreciated. Thanks!

I mentioned the subs are DVC, 4ohm, and I also mentioned money isn't an issue, but I don't want to spend too much money since I'm not going to compete. What I wanted to know was, is all of that equipment I mentioned good enough? Will that amp be good enough for those subs? Are those Kappa's good? Would that Alpine amp be good for those Kappa's or does anyone know a better amp? Do you think a 50watt 4 channel amp is high enough or should I get a bigger one? Thanks for the tips for the HU, I'll look into the Eclipse.

So, all I want to know is what I mentioned above. Thanks again. Can anyone here help?