Hey Mike, feeling dizzy yet LOL I feel yer pain, SO many options to go with. And just as many opinions too. Options and opinions, DIZZY!!
But.... You are getting some good ideas Im sure. And in the end you will go with what suits you, cost, performance, upgradability, looks, ease of installation, and other stuff.
Ok, some more opinion fer ya
The advantage of going with one supplier of all the components you want is they have gone through the issues of compatibility. You may pay slightly more (worth it for compatibility testing), maybe even get a better deal than piece mealing a system together. And IMO even if a part isnt gonna add mountains of performance, say the lower CAs, if they match the uppers then the aesthetic value can be worth it. Looks are more important on a street car than a track car. So if the arms match, it looks like a package, not a half azzed approach to getting some improvements. And the aftermarket lowers do add in strength besides looks. Remember, the entire front end load is placed on them. The uppers just control the uprights placement.
Coilovers? I dont have them but I would have them over stock springs. Tunability means alot to me. More spring rates available. And again, they just look better.
And I would get the AFX uprights while yer at it. Dont know what the cost of them are but they appear to be the hot ticket.
All about the money really. Its kinda an endless road with the parts available but the wallet will dictate alot of what happens. Cant wait to see what you come up with. JR