Throttle Body and SLP CAI issues

First issue: I removed the stock throttle body plate, and figured we would just go get another gasket at AutoZone, but they didn't have it. So when I figured screw it and put the old one back on, it had somehow stretched itself over the course of four hours. It's now way too large to fit over the opening, so now I definitely need a new one. I found these real quick:
http://cgi.ebay.com/ebaymotors/Camar...item5643b3aaa7
http://cgi.ebay.com/ebaymotors/LT1-T...item588dae0b74
Which one should I use?
Second: I bought a throttle body airfoil, but that install isn't seeming very easy either. If you look at the picture, I'm holding the airfoil in place where it's supposed to be:

First of all, there's a bolt that came with it, and there's a hole where the bolt is supposed to go, but there's no hole in the throttle body to bolt the airfoil to. How does it go in? Also, when the airfoil is in place, air is no longer allowed to go into the top portion of the throttle body, where there's a vent hose that goes to the passenger-side valve cover. Will it make any difference if that's covered up?
My next issue came when I was trying to install my SLP Cold Air Intake. What do you guys use to connect the MAF housing to the tubes? the diameter of the housing is smaller than the diameter of the rest of the intake.
Answers to any of these questions ASAP would be greatly appreciated. Thanks.
I used to have one of those ages ago, but don't need it anymore as my car has had a BBK 58mm for 10 years now.



