Replacing 2003 Sonata speakers, opinions requested

Hey. I just bought a used Sonata (pearl white, tint, moon roof) 2 weeks ago and I'm "lovin' it." However, the speakers are shot.

A) When putting in 6.5s in the doors, would you recommend having the stock tweeters cut off? The reason I ask is because the new speakers I buy will certainly have tweeters in them, and I don't want my new, better sounding speakers being hindered volume-wise because the stock tweeters may be blown. Or.....would you buy a "componenet" speaker set that comes with 2 tweeters in addition to the 6.5 inch door speakers.

B) I was thinking Pioneer, 3-way speakers in the back, and Pioneer 2 or 3-way speakers in the doors because they're relatively cheap (just under $99 each set) and are a trusted brand. But if you read question 'A' you probably understand that with the tweeter question I have, I may have to spring a lot more money on a different brand (Boston Acoustics) that offers a component system. And if that's the case I'm going to have to also buy Boston Acoustic 6x9s to match.

C) Am I on the right track here?

D) Just FYI I will be purchasing an Alpine 9856 deck with iPod dock connector either at the same time or the next pay check after the speakers are done.

hi i 4 inch in front  in doors 2way 6inch and back 3way 6inch  all sony explode sound good loud enough 4 me unless u want 2 be a sick bro